From 8f639ecdcdbdb34dfd8c2f9fe13a75b43dfc7088 Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Tue, 4 Dec 2018 13:15:58 -0500
Subject: [PATCH] Day 4

---
 lib/day4/day4.ex   |  144 ++++++
 lib/day4/input.txt | 1072 ++++++++++++++++++++++++++++++++++++++++++++
 test/day4_test.exs |   83 ++++
 3 files changed, 1299 insertions(+)
 create mode 100644 lib/day4/day4.ex
 create mode 100644 lib/day4/input.txt
 create mode 100644 test/day4_test.exs

diff --git a/lib/day4/day4.ex b/lib/day4/day4.ex
new file mode 100644
index 0000000..072fc3a
--- /dev/null
+++ b/lib/day4/day4.ex
@@ -0,0 +1,144 @@
+defmodule Day4 do
+
+  defmodule Timestamp do
+    defstruct [:year, :month, :day, :hour, :minute]
+
+    def create(y, m, d, h, min) do
+      %Timestamp{
+        year: y |> String.to_integer(),
+        month: m |> String.to_integer(),
+        day: d |> String.to_integer(),
+        hour: h |> String.to_integer(),
+        minute: min |> String.to_integer
+      }
+    end
+
+    def range(first, second) do
+      first.minute..second.minute
+    end
+  end
+  
+  def parse_event(line) do
+    res = Regex.run(~r/\[(\d+)-(\d+)-(\d+) (\d+):(\d+)\] (.+)/, line)
+    [_line, y, m, d, h, min, event | _tail] = res
+    {
+      Timestamp.create(y, m, d, h, min),
+      event
+    }
+  end
+
+  def parse_events(lines) do
+    lines
+    |> Enum.map(&parse_event/1)
+  end
+
+  def sort_events(events) do
+    events
+    |> Enum.sort_by(fn {ts, _} ->
+      {ts.year, ts.month, ts.day, ts.hour, ts.minute}
+    end)
+  end
+
+  def parse_guard({_, msg}) do
+    case Regex.run(~r/Guard #(\d+) begins shift/, msg) do
+      [_event, id | _tail] -> id
+      _ -> nil
+    end
+  end
+
+  def get_sleep_times(events) do
+    chunk_fun = fn event, acc ->
+      case parse_guard(event) do
+        nil -> {:cont, [event | acc]}
+        _id -> {:cont, Enum.reverse(acc), [event]}
+      end
+    end
+    after_fun = fn
+      [] -> {:cont, []}
+      acc -> {:cont, Enum.reverse(acc), acc}
+    end
+    events
+    |> Enum.chunk_while([], chunk_fun, after_fun)
+    |> Enum.reject(fn
+      [] -> true
+      _ -> false
+    end)
+    |> Enum.reduce(%{}, fn [begin_shift | events], acc ->
+      guard_id = parse_guard(begin_shift)
+      ranges = events
+      |> Enum.chunk_every(2)
+      |> Enum.map(fn [{sleep, _}, {wake, _} | []] ->
+        Timestamp.range(sleep, wake)
+      end)
+      Map.update(acc, guard_id, ranges, &(&1 ++ ranges))
+    end)
+    |> Enum.reject(fn
+      {_id, []} -> true
+      _ -> false
+    end)
+  end
+
+  def get_max_sleep_time(guards) do
+    guards
+    |> Enum.map(fn {id, times} ->
+      total = times
+      |> Enum.map(fn a..b -> b - a end)
+      |> Enum.sum()
+      {minute, _count} = times
+      |> Enum.flat_map(&Enum.to_list/1)
+      |> Enum.reduce(%{}, fn minute, acc ->
+        Map.update(acc, minute, 1, &(&1 + 1))
+      end)
+      |> Enum.max_by(fn {_minute, count} -> count end)
+      {id, total, minute}
+    end)
+    |> Enum.max_by(fn {_id, total, _minute} -> total end)
+  end
+
+  def range_containing(ranges) do
+    first = Enum.reduce(ranges, Enum.at(ranges, 0).first, fn first.._, acc ->
+      min(first, acc)
+    end)
+    last = Enum.reduce(ranges, Enum.at(ranges, 0).last, fn _..last, acc ->
+      max(last, acc)
+    end)
+    first..last
+  end
+
+  def get_most_frequent_sleep_time(guards) do
+    guards
+    |> Enum.map(fn {id, times} ->
+      {minute, count} = range_containing(times)
+      |> Enum.map(fn minute ->
+        {minute, Enum.count(times, fn range -> minute in range end)}
+      end)
+      |> Enum.max_by(fn {_minute, count} -> count end)
+      {id, minute, count}
+    end)
+    |> Enum.max_by(fn {_id, _minute, count} -> count end)
+  end
+
+  def parse_input() do
+    File.read!("lib/day4/input.txt")
+    |> String.split("\n", trim: true)
+  end
+
+  def part1() do
+    {id, _total, minute} = parse_input()
+    |> parse_events()
+    |> sort_events()
+    |> get_sleep_times()
+    |> get_max_sleep_time()
+    String.to_integer(id) * minute
+  end
+
+  def part2() do
+    {id, minute, _count} = parse_input()
+    |> parse_events()
+    |> sort_events()
+    |> get_sleep_times()
+    |> get_most_frequent_sleep_time()
+    String.to_integer(id) * minute
+  end
+
+end
\ No newline at end of file
diff --git a/lib/day4/input.txt b/lib/day4/input.txt
new file mode 100644
index 0000000..f4c9815
--- /dev/null
+++ b/lib/day4/input.txt
@@ -0,0 +1,1072 @@
+[1518-04-25 00:24] falls asleep
+[1518-05-22 23:50] Guard #3299 begins shift
+[1518-06-25 00:25] falls asleep
+[1518-04-13 00:54] wakes up
+[1518-04-10 00:04] Guard #2467 begins shift
+[1518-08-03 00:01] Guard #2543 begins shift
+[1518-03-31 00:01] Guard #613 begins shift
+[1518-07-07 00:57] wakes up
+[1518-03-28 00:59] wakes up
+[1518-07-15 23:59] Guard #883 begins shift
+[1518-05-22 00:00] Guard #3299 begins shift
+[1518-10-08 00:50] wakes up
+[1518-05-05 00:16] wakes up
+[1518-05-24 00:56] wakes up
+[1518-04-15 00:57] falls asleep
+[1518-07-18 00:16] falls asleep
+[1518-09-29 00:52] wakes up
+[1518-05-28 00:54] wakes up
+[1518-04-30 00:54] wakes up
+[1518-11-18 00:45] wakes up
+[1518-08-26 00:56] wakes up
+[1518-09-12 00:27] wakes up
+[1518-09-09 00:47] falls asleep
+[1518-07-22 00:43] falls asleep
+[1518-09-20 00:00] Guard #263 begins shift
+[1518-05-06 00:38] wakes up
+[1518-08-21 00:51] falls asleep
+[1518-08-15 00:44] wakes up
+[1518-05-18 00:22] falls asleep
+[1518-06-07 00:12] falls asleep
+[1518-03-27 00:04] Guard #449 begins shift
+[1518-05-12 23:52] Guard #1571 begins shift
+[1518-10-24 00:00] Guard #3571 begins shift
+[1518-10-08 00:40] falls asleep
+[1518-08-18 00:03] Guard #883 begins shift
+[1518-10-24 23:57] Guard #2161 begins shift
+[1518-05-18 00:50] wakes up
+[1518-06-06 00:49] wakes up
+[1518-03-29 00:45] wakes up
+[1518-07-26 00:55] wakes up
+[1518-07-06 00:48] wakes up
+[1518-09-02 23:59] Guard #1307 begins shift
+[1518-09-20 23:57] Guard #577 begins shift
+[1518-10-14 00:00] Guard #1697 begins shift
+[1518-04-28 00:43] wakes up
+[1518-05-17 00:09] falls asleep
+[1518-04-06 00:45] falls asleep
+[1518-10-16 00:00] Guard #1307 begins shift
+[1518-08-22 00:09] falls asleep
+[1518-08-13 00:29] falls asleep
+[1518-08-04 00:48] wakes up
+[1518-09-07 00:44] wakes up
+[1518-04-24 00:56] falls asleep
+[1518-04-09 00:41] falls asleep
+[1518-11-16 00:29] falls asleep
+[1518-04-16 00:55] wakes up
+[1518-09-30 00:03] Guard #2543 begins shift
+[1518-07-05 00:20] falls asleep
+[1518-04-02 00:54] falls asleep
+[1518-07-01 00:04] Guard #919 begins shift
+[1518-03-03 00:38] wakes up
+[1518-04-04 00:38] wakes up
+[1518-09-16 00:40] falls asleep
+[1518-07-04 00:31] falls asleep
+[1518-03-01 00:59] wakes up
+[1518-03-14 00:58] wakes up
+[1518-05-21 00:04] Guard #283 begins shift
+[1518-06-08 00:00] Guard #1307 begins shift
+[1518-07-24 00:52] wakes up
+[1518-04-15 00:41] wakes up
+[1518-06-06 00:00] Guard #1619 begins shift
+[1518-09-14 00:38] wakes up
+[1518-03-28 00:36] wakes up
+[1518-03-23 23:56] Guard #2423 begins shift
+[1518-07-07 00:27] falls asleep
+[1518-09-19 00:14] falls asleep
+[1518-08-05 23:59] Guard #2423 begins shift
+[1518-05-09 00:27] falls asleep
+[1518-10-16 00:35] wakes up
+[1518-05-16 00:51] falls asleep
+[1518-07-14 00:29] wakes up
+[1518-10-15 00:10] falls asleep
+[1518-05-21 00:31] falls asleep
+[1518-11-08 00:47] wakes up
+[1518-09-15 00:53] wakes up
+[1518-03-20 00:44] wakes up
+[1518-03-22 00:48] wakes up
+[1518-07-30 23:56] Guard #1571 begins shift
+[1518-09-06 00:25] wakes up
+[1518-04-20 23:57] Guard #613 begins shift
+[1518-03-06 00:58] wakes up
+[1518-04-09 00:03] Guard #2161 begins shift
+[1518-10-11 23:52] Guard #1619 begins shift
+[1518-05-15 00:01] Guard #953 begins shift
+[1518-07-14 00:00] falls asleep
+[1518-03-07 00:19] falls asleep
+[1518-10-10 00:49] wakes up
+[1518-07-05 00:56] wakes up
+[1518-03-02 00:04] Guard #883 begins shift
+[1518-04-20 00:44] falls asleep
+[1518-11-22 00:33] falls asleep
+[1518-03-30 00:57] wakes up
+[1518-04-21 00:50] falls asleep
+[1518-03-11 00:56] falls asleep
+[1518-11-18 00:27] falls asleep
+[1518-07-04 00:02] Guard #283 begins shift
+[1518-06-04 00:53] wakes up
+[1518-05-03 00:23] falls asleep
+[1518-06-05 00:57] falls asleep
+[1518-09-22 00:28] wakes up
+[1518-08-23 00:54] falls asleep
+[1518-10-22 00:49] wakes up
+[1518-08-27 00:33] falls asleep
+[1518-07-12 00:08] falls asleep
+[1518-06-27 00:11] wakes up
+[1518-06-28 00:55] wakes up
+[1518-09-02 00:10] falls asleep
+[1518-04-27 23:59] Guard #3571 begins shift
+[1518-07-24 00:29] falls asleep
+[1518-05-12 00:20] falls asleep
+[1518-08-25 00:31] wakes up
+[1518-03-13 23:58] Guard #919 begins shift
+[1518-10-25 00:46] wakes up
+[1518-05-26 00:57] wakes up
+[1518-08-10 00:34] wakes up
+[1518-10-07 00:33] falls asleep
+[1518-09-14 00:53] wakes up
+[1518-09-13 00:18] falls asleep
+[1518-07-18 00:28] wakes up
+[1518-09-04 00:26] falls asleep
+[1518-06-16 00:38] wakes up
+[1518-04-05 00:04] falls asleep
+[1518-03-11 00:59] wakes up
+[1518-07-26 00:18] falls asleep
+[1518-06-23 00:53] falls asleep
+[1518-06-14 00:07] wakes up
+[1518-05-11 23:59] Guard #953 begins shift
+[1518-07-13 00:01] Guard #883 begins shift
+[1518-10-26 23:58] Guard #2161 begins shift
+[1518-03-15 00:49] wakes up
+[1518-07-28 23:47] Guard #1619 begins shift
+[1518-05-29 00:35] falls asleep
+[1518-11-14 00:05] wakes up
+[1518-08-06 00:31] falls asleep
+[1518-11-02 00:52] wakes up
+[1518-05-27 00:41] falls asleep
+[1518-05-03 00:14] falls asleep
+[1518-04-03 00:00] Guard #1091 begins shift
+[1518-09-16 00:46] wakes up
+[1518-05-04 23:49] Guard #1607 begins shift
+[1518-10-25 00:42] falls asleep
+[1518-09-17 00:40] wakes up
+[1518-11-09 00:53] wakes up
+[1518-07-06 00:07] falls asleep
+[1518-06-25 23:54] Guard #1697 begins shift
+[1518-05-05 00:59] wakes up
+[1518-03-16 00:43] falls asleep
+[1518-08-04 00:52] falls asleep
+[1518-08-16 00:29] falls asleep
+[1518-03-25 23:57] Guard #883 begins shift
+[1518-03-18 00:23] falls asleep
+[1518-03-09 00:56] wakes up
+[1518-11-19 00:45] falls asleep
+[1518-03-14 00:56] falls asleep
+[1518-09-03 00:30] wakes up
+[1518-09-19 00:20] wakes up
+[1518-06-21 00:06] falls asleep
+[1518-08-28 00:00] Guard #2423 begins shift
+[1518-06-04 00:00] falls asleep
+[1518-10-28 00:41] wakes up
+[1518-07-15 00:32] wakes up
+[1518-03-12 00:27] falls asleep
+[1518-10-02 00:02] falls asleep
+[1518-08-22 00:38] wakes up
+[1518-06-22 00:40] wakes up
+[1518-09-22 00:47] wakes up
+[1518-07-26 00:47] falls asleep
+[1518-11-08 00:00] Guard #283 begins shift
+[1518-08-16 00:23] wakes up
+[1518-04-15 00:51] falls asleep
+[1518-07-19 00:38] wakes up
+[1518-07-26 00:40] wakes up
+[1518-02-24 00:59] wakes up
+[1518-08-30 00:00] Guard #2543 begins shift
+[1518-07-08 00:23] falls asleep
+[1518-11-21 00:43] falls asleep
+[1518-04-06 00:01] falls asleep
+[1518-11-22 00:48] wakes up
+[1518-07-19 00:41] falls asleep
+[1518-04-03 00:14] falls asleep
+[1518-10-04 00:40] wakes up
+[1518-06-23 00:59] wakes up
+[1518-10-30 00:53] falls asleep
+[1518-05-29 00:00] Guard #2161 begins shift
+[1518-11-21 00:53] wakes up
+[1518-03-22 00:32] falls asleep
+[1518-11-01 00:46] wakes up
+[1518-03-21 00:04] Guard #3299 begins shift
+[1518-06-11 00:01] falls asleep
+[1518-04-12 00:55] wakes up
+[1518-03-22 23:59] Guard #613 begins shift
+[1518-07-04 00:46] wakes up
+[1518-05-20 00:00] Guard #2467 begins shift
+[1518-10-26 00:28] wakes up
+[1518-03-12 00:50] falls asleep
+[1518-11-08 00:20] falls asleep
+[1518-04-10 00:32] falls asleep
+[1518-09-10 00:24] wakes up
+[1518-06-11 00:51] falls asleep
+[1518-03-07 00:22] wakes up
+[1518-08-26 00:49] falls asleep
+[1518-06-01 00:02] Guard #3299 begins shift
+[1518-10-29 00:50] wakes up
+[1518-07-13 23:50] Guard #1571 begins shift
+[1518-06-06 00:37] wakes up
+[1518-09-13 00:01] Guard #2467 begins shift
+[1518-08-06 00:34] wakes up
+[1518-07-20 00:01] Guard #2423 begins shift
+[1518-07-09 00:58] wakes up
+[1518-04-26 00:34] wakes up
+[1518-07-23 00:33] falls asleep
+[1518-08-14 00:27] falls asleep
+[1518-10-26 00:52] wakes up
+[1518-08-08 00:42] falls asleep
+[1518-07-29 00:02] falls asleep
+[1518-05-16 00:15] falls asleep
+[1518-07-18 00:01] Guard #449 begins shift
+[1518-06-15 00:37] falls asleep
+[1518-11-15 23:56] Guard #883 begins shift
+[1518-03-26 00:51] wakes up
+[1518-08-04 00:53] wakes up
+[1518-07-20 00:46] falls asleep
+[1518-09-19 00:02] Guard #883 begins shift
+[1518-03-16 23:57] Guard #2423 begins shift
+[1518-03-04 00:45] falls asleep
+[1518-03-20 00:27] falls asleep
+[1518-06-14 00:36] wakes up
+[1518-05-09 00:29] wakes up
+[1518-04-15 00:06] falls asleep
+[1518-10-23 00:02] Guard #2423 begins shift
+[1518-10-10 23:58] Guard #3571 begins shift
+[1518-09-01 00:13] falls asleep
+[1518-04-24 00:39] wakes up
+[1518-07-21 00:56] wakes up
+[1518-08-16 00:31] wakes up
+[1518-04-29 00:50] wakes up
+[1518-04-11 00:57] wakes up
+[1518-11-14 00:51] falls asleep
+[1518-08-15 00:50] wakes up
+[1518-04-21 00:40] wakes up
+[1518-11-10 00:03] falls asleep
+[1518-04-09 00:50] wakes up
+[1518-02-26 00:01] Guard #2161 begins shift
+[1518-04-03 00:51] wakes up
+[1518-04-18 00:53] wakes up
+[1518-08-17 00:03] Guard #1597 begins shift
+[1518-10-06 00:47] wakes up
+[1518-10-30 00:56] wakes up
+[1518-10-07 00:20] falls asleep
+[1518-08-26 00:32] wakes up
+[1518-02-23 23:58] Guard #3571 begins shift
+[1518-03-30 00:49] falls asleep
+[1518-09-07 23:56] Guard #953 begins shift
+[1518-05-02 00:45] wakes up
+[1518-03-27 23:57] Guard #1697 begins shift
+[1518-06-05 00:04] Guard #3571 begins shift
+[1518-09-25 23:59] Guard #283 begins shift
+[1518-08-21 00:57] wakes up
+[1518-03-06 00:44] falls asleep
+[1518-08-11 00:00] Guard #1619 begins shift
+[1518-03-24 23:50] Guard #1619 begins shift
+[1518-08-23 00:03] Guard #883 begins shift
+[1518-07-12 00:38] falls asleep
+[1518-10-06 00:21] falls asleep
+[1518-10-09 23:57] Guard #2801 begins shift
+[1518-07-07 23:59] Guard #3571 begins shift
+[1518-09-05 23:54] Guard #3571 begins shift
+[1518-04-21 00:56] wakes up
+[1518-06-12 00:00] Guard #577 begins shift
+[1518-04-20 00:03] Guard #1571 begins shift
+[1518-02-23 00:15] falls asleep
+[1518-10-09 00:39] wakes up
+[1518-11-20 00:11] falls asleep
+[1518-03-23 00:41] falls asleep
+[1518-11-23 00:01] Guard #613 begins shift
+[1518-10-17 00:33] falls asleep
+[1518-08-07 00:01] Guard #3571 begins shift
+[1518-02-25 00:35] wakes up
+[1518-07-22 00:01] Guard #919 begins shift
+[1518-09-14 00:56] falls asleep
+[1518-06-05 00:27] falls asleep
+[1518-08-05 00:05] falls asleep
+[1518-10-07 00:49] falls asleep
+[1518-11-01 23:59] Guard #1619 begins shift
+[1518-08-24 00:00] Guard #449 begins shift
+[1518-09-12 00:04] falls asleep
+[1518-09-05 00:02] falls asleep
+[1518-10-17 00:01] falls asleep
+[1518-05-02 00:30] falls asleep
+[1518-09-10 23:50] Guard #2161 begins shift
+[1518-11-14 00:53] wakes up
+[1518-07-03 00:54] wakes up
+[1518-02-27 23:57] Guard #1619 begins shift
+[1518-08-09 00:31] falls asleep
+[1518-11-22 00:29] wakes up
+[1518-03-30 00:41] wakes up
+[1518-04-02 00:55] wakes up
+[1518-05-09 00:54] wakes up
+[1518-06-16 00:03] Guard #1597 begins shift
+[1518-06-29 23:59] Guard #953 begins shift
+[1518-04-30 23:59] Guard #1571 begins shift
+[1518-09-08 00:52] wakes up
+[1518-06-17 00:00] Guard #1697 begins shift
+[1518-08-03 00:59] wakes up
+[1518-03-16 00:01] Guard #2543 begins shift
+[1518-07-29 00:19] wakes up
+[1518-05-11 00:53] wakes up
+[1518-10-20 00:36] falls asleep
+[1518-04-27 00:55] wakes up
+[1518-08-16 00:17] falls asleep
+[1518-08-15 00:04] Guard #613 begins shift
+[1518-06-02 00:49] falls asleep
+[1518-03-19 00:56] wakes up
+[1518-04-01 00:03] Guard #1307 begins shift
+[1518-05-25 00:00] Guard #1307 begins shift
+[1518-09-29 00:00] Guard #2801 begins shift
+[1518-08-15 00:49] falls asleep
+[1518-11-06 00:02] falls asleep
+[1518-03-11 00:02] Guard #1697 begins shift
+[1518-09-05 00:28] falls asleep
+[1518-03-12 00:32] wakes up
+[1518-07-12 00:21] wakes up
+[1518-04-12 00:25] falls asleep
+[1518-10-18 00:18] falls asleep
+[1518-03-04 00:04] Guard #2423 begins shift
+[1518-04-21 00:15] falls asleep
+[1518-03-04 00:57] wakes up
+[1518-11-11 23:56] Guard #577 begins shift
+[1518-10-07 00:51] wakes up
+[1518-11-02 00:06] falls asleep
+[1518-06-08 00:59] wakes up
+[1518-03-30 00:04] Guard #953 begins shift
+[1518-09-18 00:24] falls asleep
+[1518-07-29 00:15] wakes up
+[1518-03-31 00:45] wakes up
+[1518-07-29 00:38] wakes up
+[1518-11-16 00:54] wakes up
+[1518-08-13 00:53] wakes up
+[1518-04-16 23:57] Guard #1619 begins shift
+[1518-11-22 00:05] falls asleep
+[1518-10-30 00:05] falls asleep
+[1518-03-08 00:17] falls asleep
+[1518-07-25 00:31] wakes up
+[1518-05-25 00:25] falls asleep
+[1518-06-10 00:19] falls asleep
+[1518-11-07 00:49] wakes up
+[1518-04-20 00:58] wakes up
+[1518-07-17 00:29] wakes up
+[1518-10-03 00:16] falls asleep
+[1518-04-22 00:54] falls asleep
+[1518-07-02 00:02] Guard #1619 begins shift
+[1518-03-29 00:04] Guard #1697 begins shift
+[1518-05-07 23:59] Guard #577 begins shift
+[1518-09-23 00:47] falls asleep
+[1518-07-27 23:57] Guard #1597 begins shift
+[1518-08-07 00:36] falls asleep
+[1518-06-29 00:04] wakes up
+[1518-06-19 00:29] falls asleep
+[1518-08-01 00:03] falls asleep
+[1518-10-12 00:56] wakes up
+[1518-09-01 00:18] wakes up
+[1518-06-19 00:02] Guard #2543 begins shift
+[1518-10-03 00:53] wakes up
+[1518-10-09 00:07] falls asleep
+[1518-02-26 00:47] wakes up
+[1518-08-25 23:59] Guard #1607 begins shift
+[1518-11-13 23:50] Guard #2801 begins shift
+[1518-06-10 00:02] Guard #2801 begins shift
+[1518-07-10 00:05] falls asleep
+[1518-03-12 00:56] wakes up
+[1518-09-06 00:54] wakes up
+[1518-04-26 23:52] Guard #2161 begins shift
+[1518-09-08 00:42] falls asleep
+[1518-04-29 23:49] Guard #2801 begins shift
+[1518-09-02 00:49] wakes up
+[1518-09-25 00:00] Guard #1697 begins shift
+[1518-10-10 00:52] falls asleep
+[1518-08-23 00:55] wakes up
+[1518-10-07 23:58] Guard #919 begins shift
+[1518-03-27 00:09] falls asleep
+[1518-07-10 00:49] wakes up
+[1518-05-24 00:00] Guard #2467 begins shift
+[1518-07-03 00:02] Guard #883 begins shift
+[1518-07-09 00:41] falls asleep
+[1518-11-08 00:43] falls asleep
+[1518-10-10 00:48] falls asleep
+[1518-09-07 00:32] falls asleep
+[1518-04-30 00:37] falls asleep
+[1518-07-15 00:51] falls asleep
+[1518-07-10 23:58] Guard #2543 begins shift
+[1518-04-27 00:20] wakes up
+[1518-02-26 00:59] wakes up
+[1518-11-13 00:01] falls asleep
+[1518-03-28 00:34] falls asleep
+[1518-10-18 00:52] wakes up
+[1518-06-25 00:01] falls asleep
+[1518-05-06 00:49] falls asleep
+[1518-04-16 00:17] falls asleep
+[1518-08-10 00:50] falls asleep
+[1518-10-17 00:27] wakes up
+[1518-06-27 00:05] falls asleep
+[1518-08-31 00:25] falls asleep
+[1518-04-02 00:44] wakes up
+[1518-05-31 00:53] wakes up
+[1518-04-19 00:04] falls asleep
+[1518-03-12 23:49] Guard #1697 begins shift
+[1518-11-12 23:52] Guard #953 begins shift
+[1518-04-15 00:01] Guard #1697 begins shift
+[1518-09-10 00:21] falls asleep
+[1518-02-22 23:58] Guard #2543 begins shift
+[1518-06-20 00:03] Guard #449 begins shift
+[1518-10-06 00:15] wakes up
+[1518-06-21 00:00] Guard #2161 begins shift
+[1518-09-26 00:57] wakes up
+[1518-03-20 00:00] Guard #2423 begins shift
+[1518-03-01 00:36] falls asleep
+[1518-07-23 00:59] wakes up
+[1518-08-03 00:39] falls asleep
+[1518-06-23 00:45] wakes up
+[1518-05-20 00:25] falls asleep
+[1518-07-16 00:57] wakes up
+[1518-11-05 00:17] falls asleep
+[1518-09-25 00:32] falls asleep
+[1518-03-05 00:45] falls asleep
+[1518-05-08 23:56] Guard #2423 begins shift
+[1518-06-18 00:29] falls asleep
+[1518-08-20 23:58] Guard #1571 begins shift
+[1518-11-14 23:57] Guard #883 begins shift
+[1518-07-08 00:26] wakes up
+[1518-09-02 00:00] Guard #1571 begins shift
+[1518-07-16 23:56] Guard #1571 begins shift
+[1518-11-14 00:47] wakes up
+[1518-07-25 00:02] Guard #449 begins shift
+[1518-11-23 00:55] wakes up
+[1518-10-13 00:48] wakes up
+[1518-04-15 00:18] wakes up
+[1518-03-24 00:28] falls asleep
+[1518-07-18 00:39] falls asleep
+[1518-04-16 00:25] falls asleep
+[1518-10-24 00:38] falls asleep
+[1518-06-18 00:00] Guard #1091 begins shift
+[1518-11-19 00:50] wakes up
+[1518-04-02 00:00] Guard #1607 begins shift
+[1518-10-24 00:50] wakes up
+[1518-04-18 00:33] wakes up
+[1518-10-08 00:54] falls asleep
+[1518-05-17 00:54] wakes up
+[1518-05-19 00:48] wakes up
+[1518-08-26 00:16] falls asleep
+[1518-10-10 00:13] falls asleep
+[1518-09-16 23:59] Guard #919 begins shift
+[1518-10-13 00:54] falls asleep
+[1518-08-16 00:04] Guard #2467 begins shift
+[1518-06-05 00:39] wakes up
+[1518-04-13 00:03] Guard #613 begins shift
+[1518-10-26 00:45] wakes up
+[1518-04-03 23:58] Guard #953 begins shift
+[1518-05-06 00:53] wakes up
+[1518-06-22 00:00] Guard #1697 begins shift
+[1518-07-28 00:31] wakes up
+[1518-10-13 00:55] wakes up
+[1518-06-16 00:57] wakes up
+[1518-08-05 00:09] wakes up
+[1518-10-10 00:58] wakes up
+[1518-09-15 00:00] Guard #613 begins shift
+[1518-05-03 00:01] Guard #1619 begins shift
+[1518-08-20 00:04] Guard #883 begins shift
+[1518-03-08 00:55] wakes up
+[1518-07-17 00:48] falls asleep
+[1518-09-14 00:47] falls asleep
+[1518-07-24 00:37] falls asleep
+[1518-02-27 00:48] falls asleep
+[1518-05-03 00:53] wakes up
+[1518-09-27 23:58] Guard #1571 begins shift
+[1518-03-25 00:59] wakes up
+[1518-05-30 00:51] falls asleep
+[1518-03-25 00:47] wakes up
+[1518-04-13 00:08] falls asleep
+[1518-06-10 00:22] wakes up
+[1518-06-03 00:12] falls asleep
+[1518-10-23 00:07] falls asleep
+[1518-09-04 00:03] Guard #3299 begins shift
+[1518-03-05 00:39] wakes up
+[1518-04-26 00:15] falls asleep
+[1518-09-22 00:02] Guard #1597 begins shift
+[1518-11-11 00:36] falls asleep
+[1518-08-29 00:26] falls asleep
+[1518-07-19 00:04] falls asleep
+[1518-03-05 00:59] wakes up
+[1518-11-10 00:10] wakes up
+[1518-08-19 00:33] falls asleep
+[1518-06-10 23:48] Guard #2467 begins shift
+[1518-07-02 00:52] wakes up
+[1518-09-05 00:58] wakes up
+[1518-10-29 00:21] falls asleep
+[1518-08-31 00:31] wakes up
+[1518-03-11 00:30] falls asleep
+[1518-06-19 00:40] wakes up
+[1518-11-20 00:00] Guard #613 begins shift
+[1518-03-27 00:32] wakes up
+[1518-10-28 00:44] falls asleep
+[1518-02-27 00:18] falls asleep
+[1518-05-15 00:51] wakes up
+[1518-05-31 00:58] wakes up
+[1518-06-26 23:47] Guard #3299 begins shift
+[1518-06-06 23:59] Guard #1091 begins shift
+[1518-07-11 00:56] wakes up
+[1518-10-16 00:30] falls asleep
+[1518-05-19 00:03] falls asleep
+[1518-10-19 00:45] falls asleep
+[1518-10-09 00:04] Guard #283 begins shift
+[1518-05-13 00:54] wakes up
+[1518-05-07 00:56] falls asleep
+[1518-04-19 00:55] wakes up
+[1518-05-28 00:16] falls asleep
+[1518-09-17 00:29] falls asleep
+[1518-06-13 00:04] Guard #3299 begins shift
+[1518-06-14 00:05] falls asleep
+[1518-04-27 00:25] falls asleep
+[1518-03-11 00:39] wakes up
+[1518-04-17 00:52] falls asleep
+[1518-11-09 23:51] Guard #3299 begins shift
+[1518-09-27 00:04] falls asleep
+[1518-05-16 00:48] wakes up
+[1518-03-24 00:46] wakes up
+[1518-05-11 00:03] Guard #883 begins shift
+[1518-02-24 00:20] falls asleep
+[1518-03-28 00:53] falls asleep
+[1518-04-17 00:35] wakes up
+[1518-08-08 00:00] Guard #2801 begins shift
+[1518-05-15 00:17] falls asleep
+[1518-10-21 00:03] falls asleep
+[1518-06-05 00:45] falls asleep
+[1518-09-02 00:55] wakes up
+[1518-03-30 00:35] falls asleep
+[1518-06-16 00:26] falls asleep
+[1518-02-25 00:08] falls asleep
+[1518-10-19 00:00] Guard #2801 begins shift
+[1518-05-29 00:59] wakes up
+[1518-08-31 00:18] wakes up
+[1518-08-02 00:04] Guard #283 begins shift
+[1518-07-24 00:34] wakes up
+[1518-07-02 00:31] falls asleep
+[1518-06-23 00:00] Guard #449 begins shift
+[1518-03-14 23:58] Guard #1619 begins shift
+[1518-08-30 23:50] Guard #919 begins shift
+[1518-04-30 00:21] wakes up
+[1518-04-27 00:04] falls asleep
+[1518-08-24 00:59] wakes up
+[1518-08-31 23:56] Guard #1619 begins shift
+[1518-05-25 23:59] Guard #449 begins shift
+[1518-08-04 23:50] Guard #3299 begins shift
+[1518-11-03 00:50] falls asleep
+[1518-06-03 00:39] wakes up
+[1518-06-17 00:25] falls asleep
+[1518-09-16 00:55] wakes up
+[1518-11-02 23:57] Guard #613 begins shift
+[1518-05-14 00:04] Guard #1597 begins shift
+[1518-03-19 00:54] falls asleep
+[1518-03-02 00:50] wakes up
+[1518-06-03 23:53] Guard #2161 begins shift
+[1518-10-05 00:03] Guard #157 begins shift
+[1518-09-08 00:32] wakes up
+[1518-10-04 00:21] falls asleep
+[1518-10-02 00:18] wakes up
+[1518-07-04 23:57] Guard #1307 begins shift
+[1518-06-05 00:54] wakes up
+[1518-04-05 00:31] falls asleep
+[1518-06-24 23:47] Guard #2161 begins shift
+[1518-07-07 00:00] Guard #1571 begins shift
+[1518-08-11 00:35] wakes up
+[1518-03-05 23:51] Guard #2801 begins shift
+[1518-08-25 00:41] falls asleep
+[1518-08-28 00:27] falls asleep
+[1518-10-31 00:24] falls asleep
+[1518-10-29 23:46] Guard #1091 begins shift
+[1518-02-28 23:54] Guard #2161 begins shift
+[1518-06-08 23:59] Guard #577 begins shift
+[1518-06-28 23:52] Guard #883 begins shift
+[1518-04-25 00:34] wakes up
+[1518-03-01 00:25] wakes up
+[1518-03-25 00:52] falls asleep
+[1518-06-13 00:55] wakes up
+[1518-07-01 00:12] falls asleep
+[1518-11-08 23:56] Guard #449 begins shift
+[1518-07-17 00:51] wakes up
+[1518-05-18 00:59] wakes up
+[1518-06-16 00:45] falls asleep
+[1518-07-20 00:18] falls asleep
+[1518-07-23 23:56] Guard #1619 begins shift
+[1518-06-15 00:57] wakes up
+[1518-11-14 00:03] falls asleep
+[1518-08-03 00:45] wakes up
+[1518-03-08 00:00] Guard #1697 begins shift
+[1518-04-14 00:59] wakes up
+[1518-09-28 00:39] wakes up
+[1518-06-06 00:53] falls asleep
+[1518-05-17 00:36] falls asleep
+[1518-04-16 00:46] falls asleep
+[1518-07-12 00:59] wakes up
+[1518-08-11 00:33] falls asleep
+[1518-09-23 00:58] wakes up
+[1518-08-22 00:45] wakes up
+[1518-09-24 00:07] falls asleep
+[1518-05-16 00:57] wakes up
+[1518-04-24 23:59] Guard #2543 begins shift
+[1518-06-15 00:52] falls asleep
+[1518-07-29 00:23] falls asleep
+[1518-08-13 00:32] wakes up
+[1518-06-03 00:01] Guard #1091 begins shift
+[1518-06-11 00:36] falls asleep
+[1518-10-01 00:00] falls asleep
+[1518-03-02 00:34] falls asleep
+[1518-05-09 23:56] Guard #2467 begins shift
+[1518-03-05 00:06] falls asleep
+[1518-06-02 00:54] falls asleep
+[1518-06-02 00:01] Guard #1091 begins shift
+[1518-07-18 23:49] Guard #1597 begins shift
+[1518-04-01 00:48] wakes up
+[1518-04-07 00:54] falls asleep
+[1518-10-28 00:50] wakes up
+[1518-05-25 00:57] wakes up
+[1518-11-04 00:57] falls asleep
+[1518-09-11 00:55] wakes up
+[1518-09-14 00:59] wakes up
+[1518-08-31 00:52] wakes up
+[1518-10-05 23:54] Guard #1697 begins shift
+[1518-07-17 00:57] falls asleep
+[1518-04-16 00:22] wakes up
+[1518-06-30 00:09] falls asleep
+[1518-09-15 23:56] Guard #3571 begins shift
+[1518-11-15 00:46] wakes up
+[1518-09-27 00:50] wakes up
+[1518-11-05 00:02] Guard #1697 begins shift
+[1518-09-24 00:16] wakes up
+[1518-05-07 00:57] wakes up
+[1518-05-01 00:58] wakes up
+[1518-05-26 00:06] falls asleep
+[1518-03-09 00:40] falls asleep
+[1518-08-03 00:57] falls asleep
+[1518-03-17 23:59] Guard #1697 begins shift
+[1518-04-15 00:35] falls asleep
+[1518-08-09 00:35] wakes up
+[1518-05-07 00:02] Guard #1571 begins shift
+[1518-04-11 00:01] Guard #953 begins shift
+[1518-09-12 00:42] falls asleep
+[1518-04-18 00:30] falls asleep
+[1518-11-14 00:08] falls asleep
+[1518-05-05 00:01] falls asleep
+[1518-03-01 00:01] falls asleep
+[1518-05-22 00:16] falls asleep
+[1518-08-27 00:45] wakes up
+[1518-11-11 00:00] Guard #3571 begins shift
+[1518-03-10 00:09] falls asleep
+[1518-04-21 23:56] Guard #883 begins shift
+[1518-09-23 00:04] Guard #2423 begins shift
+[1518-03-27 00:48] falls asleep
+[1518-10-20 00:20] wakes up
+[1518-10-04 00:04] Guard #953 begins shift
+[1518-10-24 00:07] falls asleep
+[1518-07-26 00:01] Guard #1607 begins shift
+[1518-07-09 23:47] Guard #2423 begins shift
+[1518-06-08 00:54] falls asleep
+[1518-09-18 00:29] wakes up
+[1518-07-03 00:06] falls asleep
+[1518-09-13 00:39] wakes up
+[1518-03-10 00:03] Guard #1619 begins shift
+[1518-06-15 00:03] Guard #2543 begins shift
+[1518-06-30 00:37] falls asleep
+[1518-09-23 23:56] Guard #1091 begins shift
+[1518-04-19 00:45] falls asleep
+[1518-11-08 00:32] wakes up
+[1518-05-09 00:41] falls asleep
+[1518-08-28 00:52] wakes up
+[1518-11-17 00:01] falls asleep
+[1518-06-02 00:51] wakes up
+[1518-06-29 00:43] falls asleep
+[1518-06-11 00:38] wakes up
+[1518-10-06 00:04] falls asleep
+[1518-09-26 00:54] falls asleep
+[1518-10-13 00:43] falls asleep
+[1518-08-13 00:39] falls asleep
+[1518-06-10 00:41] falls asleep
+[1518-08-07 00:40] wakes up
+[1518-10-01 00:56] wakes up
+[1518-10-19 00:42] wakes up
+[1518-03-06 00:02] falls asleep
+[1518-08-29 00:01] Guard #1619 begins shift
+[1518-08-04 00:17] falls asleep
+[1518-07-30 00:00] Guard #953 begins shift
+[1518-04-30 00:01] falls asleep
+[1518-05-01 00:33] falls asleep
+[1518-08-08 23:57] Guard #283 begins shift
+[1518-06-25 00:41] wakes up
+[1518-09-10 00:04] Guard #1571 begins shift
+[1518-03-10 00:39] wakes up
+[1518-06-22 00:29] falls asleep
+[1518-03-14 00:39] falls asleep
+[1518-04-23 23:52] Guard #1571 begins shift
+[1518-10-31 00:58] wakes up
+[1518-05-03 00:16] wakes up
+[1518-08-31 00:43] falls asleep
+[1518-07-17 00:10] falls asleep
+[1518-07-25 00:18] falls asleep
+[1518-06-26 00:29] falls asleep
+[1518-06-02 00:59] wakes up
+[1518-03-07 00:04] Guard #953 begins shift
+[1518-11-19 00:18] falls asleep
+[1518-06-06 00:47] falls asleep
+[1518-04-05 23:46] Guard #3299 begins shift
+[1518-05-13 00:01] falls asleep
+[1518-03-03 00:23] falls asleep
+[1518-04-24 00:59] wakes up
+[1518-09-04 00:36] wakes up
+[1518-11-03 00:58] wakes up
+[1518-04-07 00:58] wakes up
+[1518-03-22 00:22] wakes up
+[1518-02-23 00:41] wakes up
+[1518-07-06 00:21] wakes up
+[1518-06-27 00:22] falls asleep
+[1518-08-29 00:33] wakes up
+[1518-03-13 00:04] falls asleep
+[1518-02-26 23:57] Guard #613 begins shift
+[1518-09-25 00:49] wakes up
+[1518-10-22 00:41] falls asleep
+[1518-03-22 00:20] falls asleep
+[1518-08-14 00:03] Guard #2801 begins shift
+[1518-07-13 00:56] wakes up
+[1518-07-30 00:40] falls asleep
+[1518-06-21 00:43] wakes up
+[1518-09-06 00:37] falls asleep
+[1518-03-29 00:40] falls asleep
+[1518-05-15 00:44] falls asleep
+[1518-08-06 00:53] falls asleep
+[1518-08-09 00:46] falls asleep
+[1518-03-16 00:59] wakes up
+[1518-07-11 00:39] falls asleep
+[1518-10-19 00:34] falls asleep
+[1518-07-22 00:55] wakes up
+[1518-02-25 00:01] Guard #1697 begins shift
+[1518-08-17 00:47] wakes up
+[1518-09-22 00:35] falls asleep
+[1518-08-14 00:29] wakes up
+[1518-03-31 00:09] falls asleep
+[1518-10-28 00:03] Guard #1597 begins shift
+[1518-11-15 00:29] falls asleep
+[1518-05-20 00:43] wakes up
+[1518-02-28 00:42] wakes up
+[1518-08-12 00:55] wakes up
+[1518-07-01 00:29] wakes up
+[1518-06-28 00:54] falls asleep
+[1518-04-16 00:35] wakes up
+[1518-06-27 23:58] Guard #1571 begins shift
+[1518-10-27 00:36] falls asleep
+[1518-09-14 00:02] Guard #1619 begins shift
+[1518-11-10 00:50] wakes up
+[1518-10-25 00:15] falls asleep
+[1518-05-02 00:00] Guard #3299 begins shift
+[1518-05-31 00:28] falls asleep
+[1518-06-01 00:17] falls asleep
+[1518-09-12 00:44] wakes up
+[1518-06-05 00:58] wakes up
+[1518-04-05 00:46] wakes up
+[1518-07-22 23:56] Guard #283 begins shift
+[1518-06-26 00:58] wakes up
+[1518-10-29 00:00] Guard #953 begins shift
+[1518-04-06 00:53] wakes up
+[1518-02-26 00:54] falls asleep
+[1518-10-17 23:58] Guard #283 begins shift
+[1518-09-02 00:52] falls asleep
+[1518-05-30 00:01] Guard #1091 begins shift
+[1518-07-15 00:56] wakes up
+[1518-10-31 00:00] Guard #953 begins shift
+[1518-04-02 00:32] falls asleep
+[1518-11-13 00:57] wakes up
+[1518-11-17 23:58] Guard #2467 begins shift
+[1518-04-01 00:29] falls asleep
+[1518-07-28 00:16] falls asleep
+[1518-10-01 00:12] wakes up
+[1518-07-11 23:58] Guard #1091 begins shift
+[1518-04-17 00:57] wakes up
+[1518-06-13 00:51] falls asleep
+[1518-07-06 00:02] Guard #3299 begins shift
+[1518-06-23 00:37] falls asleep
+[1518-08-02 00:18] falls asleep
+[1518-08-09 00:58] wakes up
+[1518-04-06 23:57] Guard #449 begins shift
+[1518-08-19 00:00] Guard #1619 begins shift
+[1518-04-15 00:59] wakes up
+[1518-04-26 00:04] Guard #1619 begins shift
+[1518-05-05 00:47] falls asleep
+[1518-04-22 00:33] wakes up
+[1518-11-01 00:07] falls asleep
+[1518-03-03 00:03] Guard #2543 begins shift
+[1518-09-30 00:57] wakes up
+[1518-06-28 00:51] wakes up
+[1518-11-19 00:36] wakes up
+[1518-06-13 23:50] Guard #449 begins shift
+[1518-03-30 00:30] wakes up
+[1518-04-05 00:25] wakes up
+[1518-04-11 00:40] falls asleep
+[1518-03-17 00:56] wakes up
+[1518-06-03 00:49] falls asleep
+[1518-03-21 00:11] falls asleep
+[1518-08-24 23:56] Guard #2801 begins shift
+[1518-07-31 23:48] Guard #2801 begins shift
+[1518-06-20 00:56] wakes up
+[1518-05-27 00:51] wakes up
+[1518-08-22 00:42] falls asleep
+[1518-09-06 00:04] falls asleep
+[1518-10-26 00:06] falls asleep
+[1518-11-06 23:57] Guard #2423 begins shift
+[1518-10-25 00:39] wakes up
+[1518-04-16 00:04] Guard #1619 begins shift
+[1518-04-19 00:36] wakes up
+[1518-08-01 00:17] wakes up
+[1518-04-22 23:57] Guard #577 begins shift
+[1518-08-08 00:26] wakes up
+[1518-07-05 00:45] wakes up
+[1518-04-17 23:58] Guard #2467 begins shift
+[1518-03-12 00:00] Guard #919 begins shift
+[1518-04-04 23:47] Guard #2161 begins shift
+[1518-11-17 00:58] wakes up
+[1518-04-15 00:53] wakes up
+[1518-11-20 00:29] wakes up
+[1518-11-11 00:54] wakes up
+[1518-08-10 00:04] Guard #283 begins shift
+[1518-05-01 00:26] wakes up
+[1518-04-29 00:23] falls asleep
+[1518-03-15 00:19] falls asleep
+[1518-07-15 00:20] falls asleep
+[1518-08-19 00:34] wakes up
+[1518-04-10 00:48] wakes up
+[1518-11-21 23:46] Guard #919 begins shift
+[1518-07-14 00:53] falls asleep
+[1518-07-27 00:58] wakes up
+[1518-07-20 00:51] wakes up
+[1518-04-24 00:05] falls asleep
+[1518-07-09 00:00] Guard #2801 begins shift
+[1518-09-30 00:27] falls asleep
+[1518-11-06 00:50] wakes up
+[1518-04-09 00:34] wakes up
+[1518-08-05 00:49] wakes up
+[1518-08-30 00:49] wakes up
+[1518-06-14 00:18] falls asleep
+[1518-10-15 00:34] falls asleep
+[1518-07-13 00:51] falls asleep
+[1518-04-18 00:37] falls asleep
+[1518-03-09 00:02] Guard #449 begins shift
+[1518-11-09 00:16] falls asleep
+[1518-10-04 00:59] wakes up
+[1518-04-30 00:42] wakes up
+[1518-10-16 23:52] Guard #613 begins shift
+[1518-10-21 00:46] wakes up
+[1518-05-23 00:01] falls asleep
+[1518-08-26 23:56] Guard #2161 begins shift
+[1518-08-05 00:16] falls asleep
+[1518-06-18 00:55] wakes up
+[1518-11-16 23:50] Guard #919 begins shift
+[1518-10-14 23:59] Guard #1571 begins shift
+[1518-07-06 00:28] falls asleep
+[1518-05-06 00:33] falls asleep
+[1518-04-22 00:19] falls asleep
+[1518-03-22 00:03] Guard #953 begins shift
+[1518-06-10 00:46] wakes up
+[1518-05-27 00:04] Guard #2801 begins shift
+[1518-11-03 00:20] falls asleep
+[1518-10-26 00:01] Guard #1597 begins shift
+[1518-10-30 00:26] wakes up
+[1518-10-10 00:39] wakes up
+[1518-06-11 00:58] wakes up
+[1518-09-26 00:38] wakes up
+[1518-08-12 00:29] falls asleep
+[1518-03-25 00:03] falls asleep
+[1518-09-22 00:18] falls asleep
+[1518-08-24 00:23] falls asleep
+[1518-04-09 00:22] falls asleep
+[1518-08-12 00:02] Guard #1597 begins shift
+[1518-08-30 00:41] falls asleep
+[1518-04-13 23:59] Guard #2801 begins shift
+[1518-09-28 00:06] falls asleep
+[1518-06-29 00:01] falls asleep
+[1518-07-15 00:00] Guard #883 begins shift
+[1518-03-14 00:53] wakes up
+[1518-04-29 00:02] Guard #3299 begins shift
+[1518-05-03 23:58] Guard #577 begins shift
+[1518-09-09 00:57] wakes up
+[1518-05-14 00:50] wakes up
+[1518-10-08 00:58] wakes up
+[1518-06-07 00:29] wakes up
+[1518-07-02 00:36] wakes up
+[1518-11-18 23:56] Guard #1307 begins shift
+[1518-07-21 00:03] Guard #2423 begins shift
+[1518-10-11 00:22] falls asleep
+[1518-05-14 00:27] falls asleep
+[1518-09-17 00:58] wakes up
+[1518-08-28 00:41] falls asleep
+[1518-04-11 23:59] Guard #1597 begins shift
+[1518-05-31 00:02] Guard #1607 begins shift
+[1518-10-21 23:58] Guard #1307 begins shift
+[1518-08-13 00:00] Guard #1607 begins shift
+[1518-05-23 00:47] wakes up
+[1518-08-08 00:57] wakes up
+[1518-04-08 00:04] falls asleep
+[1518-08-05 00:21] wakes up
+[1518-04-22 00:57] wakes up
+[1518-10-07 00:00] Guard #3299 begins shift
+[1518-05-18 00:55] falls asleep
+[1518-05-29 00:28] wakes up
+[1518-07-20 00:39] wakes up
+[1518-08-25 00:21] falls asleep
+[1518-03-06 00:26] wakes up
+[1518-11-05 23:47] Guard #1307 begins shift
+[1518-07-29 00:18] falls asleep
+[1518-04-14 00:33] falls asleep
+[1518-08-02 00:50] wakes up
+[1518-10-01 00:19] falls asleep
+[1518-05-11 00:31] falls asleep
+[1518-07-06 00:51] falls asleep
+[1518-11-04 00:59] wakes up
+[1518-09-11 23:53] Guard #919 begins shift
+[1518-07-21 00:38] falls asleep
+[1518-05-31 00:56] falls asleep
+[1518-06-06 00:54] wakes up
+[1518-11-10 00:23] falls asleep
+[1518-06-30 00:27] wakes up
+[1518-08-18 00:33] falls asleep
+[1518-07-02 00:51] falls asleep
+[1518-05-27 23:57] Guard #1619 begins shift
+[1518-10-04 00:53] falls asleep
+[1518-11-03 23:59] Guard #1597 begins shift
+[1518-04-08 00:56] wakes up
+[1518-09-11 00:05] falls asleep
+[1518-06-30 00:54] wakes up
+[1518-06-24 00:06] falls asleep
+[1518-08-15 00:11] falls asleep
+[1518-10-15 00:59] wakes up
+[1518-08-17 00:15] falls asleep
+[1518-05-10 00:58] wakes up
+[1518-05-22 00:41] wakes up
+[1518-07-30 00:57] wakes up
+[1518-06-06 00:32] falls asleep
+[1518-06-26 00:24] wakes up
+[1518-10-24 00:09] wakes up
+[1518-07-17 00:58] wakes up
+[1518-06-11 00:26] wakes up
+[1518-05-27 00:28] wakes up
+[1518-07-18 00:59] wakes up
+[1518-10-19 23:54] Guard #613 begins shift
+[1518-10-17 00:58] wakes up
+[1518-08-18 00:51] wakes up
+[1518-05-10 00:34] falls asleep
+[1518-05-24 00:07] falls asleep
+[1518-08-25 00:53] wakes up
+[1518-05-18 00:00] Guard #449 begins shift
+[1518-10-20 00:05] falls asleep
+[1518-06-29 00:49] wakes up
+[1518-04-17 00:30] falls asleep
+[1518-06-25 00:22] wakes up
+[1518-09-08 23:59] Guard #1571 begins shift
+[1518-03-23 00:49] wakes up
+[1518-04-07 23:54] Guard #2467 begins shift
+[1518-03-04 23:57] Guard #1571 begins shift
+[1518-11-07 00:34] falls asleep
+[1518-09-17 23:59] Guard #1697 begins shift
+[1518-05-16 00:04] Guard #2801 begins shift
+[1518-11-05 00:43] wakes up
+[1518-03-18 00:42] wakes up
+[1518-09-03 00:23] falls asleep
+[1518-10-14 00:36] falls asleep
+[1518-09-17 00:46] falls asleep
+[1518-08-31 00:05] falls asleep
+[1518-07-31 00:22] falls asleep
+[1518-07-05 00:50] falls asleep
+[1518-03-17 00:43] falls asleep
+[1518-06-24 00:42] wakes up
+[1518-06-01 00:33] wakes up
+[1518-06-27 00:45] wakes up
+[1518-02-26 00:21] falls asleep
+[1518-10-20 00:47] wakes up
+[1518-08-13 00:56] falls asleep
+[1518-05-17 00:03] Guard #1307 begins shift
+[1518-03-13 00:28] wakes up
+[1518-11-21 00:04] Guard #449 begins shift
+[1518-04-30 00:48] falls asleep
+[1518-10-12 00:05] falls asleep
+[1518-07-31 00:34] wakes up
+[1518-09-16 00:50] falls asleep
+[1518-07-27 00:09] falls asleep
+[1518-05-29 00:25] falls asleep
+[1518-10-07 00:42] wakes up
+[1518-10-27 00:38] wakes up
+[1518-06-15 00:41] wakes up
+[1518-06-24 00:04] Guard #3571 begins shift
+[1518-10-19 00:53] wakes up
+[1518-09-26 23:52] Guard #1597 begins shift
+[1518-05-21 00:48] wakes up
+[1518-06-17 00:42] wakes up
+[1518-03-27 00:51] wakes up
+[1518-05-12 00:33] wakes up
+[1518-08-08 00:19] falls asleep
+[1518-07-14 00:57] wakes up
+[1518-09-06 23:56] Guard #449 begins shift
+[1518-08-10 00:55] wakes up
+[1518-05-27 00:24] falls asleep
+[1518-09-30 23:49] Guard #449 begins shift
+[1518-10-28 00:40] falls asleep
+[1518-02-27 00:53] wakes up
+[1518-09-08 00:14] falls asleep
+[1518-08-13 00:59] wakes up
+[1518-05-15 00:37] wakes up
+[1518-02-27 00:40] wakes up
+[1518-10-23 00:43] wakes up
+[1518-04-06 00:24] wakes up
+[1518-07-16 00:27] falls asleep
+[1518-06-03 00:52] wakes up
+[1518-10-26 00:49] falls asleep
+[1518-11-03 00:45] wakes up
+[1518-08-05 00:27] falls asleep
+[1518-04-28 00:32] falls asleep
+[1518-05-06 00:04] Guard #919 begins shift
+[1518-11-23 00:39] falls asleep
+[1518-09-15 00:38] falls asleep
+[1518-03-21 00:29] wakes up
+[1518-10-26 00:35] falls asleep
+[1518-08-20 00:49] falls asleep
+[1518-08-10 00:19] falls asleep
+[1518-09-26 00:36] falls asleep
+[1518-09-29 00:14] falls asleep
+[1518-05-30 00:52] wakes up
+[1518-03-19 00:02] Guard #919 begins shift
+[1518-10-15 00:18] wakes up
+[1518-08-22 00:02] Guard #2161 begins shift
+[1518-08-20 00:54] wakes up
+[1518-07-19 00:57] wakes up
+[1518-10-02 23:58] Guard #919 begins shift
+[1518-07-06 00:53] wakes up
+[1518-04-04 00:22] falls asleep
+[1518-10-11 00:47] wakes up
+[1518-06-20 00:13] falls asleep
+[1518-03-26 00:49] falls asleep
+[1518-09-14 00:33] falls asleep
+[1518-08-04 00:00] Guard #283 begins shift
+[1518-07-27 00:02] Guard #1571 begins shift
+[1518-02-28 00:11] falls asleep
+[1518-08-28 00:36] wakes up
+[1518-10-14 00:52] wakes up
+[1518-05-17 00:31] wakes up
+[1518-10-07 00:24] wakes up
+[1518-09-05 00:25] wakes up
+[1518-10-13 00:02] Guard #1571 begins shift
+[1518-08-06 00:56] wakes up
+[1518-09-04 23:47] Guard #3299 begins shift
+[1518-03-30 00:21] falls asleep
+[1518-04-18 23:48] Guard #3571 begins shift
+[1518-05-18 23:47] Guard #2801 begins shift
+[1518-05-01 00:15] falls asleep
+[1518-06-28 00:27] falls asleep
+[1518-10-01 23:47] Guard #449 begins shift
+[1518-06-26 00:00] falls asleep
+[1518-10-20 23:52] Guard #953 begins shift
+[1518-11-01 00:04] Guard #449 begins shift
diff --git a/test/day4_test.exs b/test/day4_test.exs
new file mode 100644
index 0000000..74e0e60
--- /dev/null
+++ b/test/day4_test.exs
@@ -0,0 +1,83 @@
+defmodule Day4Test do
+  use ExUnit.Case
+  doctest Day4
+  alias Day4.Timestamp
+
+  test "parse event" do
+    assert Day4.parse_event("[1518-11-01 00:00] Guard #10 begins shift") == {%Timestamp{year: 1518, month: 11, day: 01, hour: 0, minute: 0}, "Guard #10 begins shift"}
+  end
+
+  test "parse guard" do
+    event = {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 00}, "Guard #10 begins shift"}
+    assert Day4.parse_guard(event) == "10"
+  end
+
+  test "sort events" do
+    events = [
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 05}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 55}, "wakes up"},
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 25}, "wakes up"},
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 00}, "Guard #10 begins shift"},
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 30}, "falls asleep"}
+    ]
+
+    assert Day4.sort_events(events) == [
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 00}, "Guard #10 begins shift"},
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 05}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 25}, "wakes up"},
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 30}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 01, hour: 00, minute: 55}, "wakes up"}
+    ]
+  end
+
+  test "get sleep times" do
+    events = [
+      {%Timestamp{year: 1518, month: 11, day: 1, hour: 0, minute: 0}, "Guard #10 begins shift"},
+      {%Timestamp{year: 1518, month: 11, day: 1, hour: 0, minute: 5}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 1, hour: 0, minute: 25}, "wakes up"},
+      {%Timestamp{year: 1518, month: 11, day: 1, hour: 0, minute: 30}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 1, hour: 0, minute: 55}, "wakes up"},
+      {%Timestamp{year: 1518, month: 11, day: 1, hour: 23, minute: 58}, "Guard #99 begins shift"},
+      {%Timestamp{year: 1518, month: 11, day: 2, hour: 0, minute: 40}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 2, hour: 0, minute: 50}, "wakes up"},
+      {%Timestamp{year: 1518, month: 11, day: 3, hour: 0, minute: 5}, "Guard #10 begins shift"},
+      {%Timestamp{year: 1518, month: 11, day: 3, hour: 0, minute: 24}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 3, hour: 0, minute: 29}, "wakes up"},
+      {%Timestamp{year: 1518, month: 11, day: 4, hour: 0, minute: 2}, "Guard #99 begins shift"},
+      {%Timestamp{year: 1518, month: 11, day: 4, hour: 0, minute: 36}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 4, hour: 0, minute: 46}, "wakes up"},
+      {%Timestamp{year: 1518, month: 11, day: 5, hour: 0, minute: 3}, "Guard #99 begins shift"},
+      {%Timestamp{year: 1518, month: 11, day: 5, hour: 0, minute: 45}, "falls asleep"},
+      {%Timestamp{year: 1518, month: 11, day: 5, hour: 0, minute: 55}, "wakes up"}
+    ]
+
+    assert Day4.get_sleep_times(events) == [
+      {"10", [5..25, 30..55, 24..29]},
+      {"99", [40..50, 36..46, 45..55]}
+    ]
+  end
+
+  test "get max sleep time" do
+    guards = [
+      {"10", [5..25, 30..55, 24..29]},
+      {"99", [40..50, 36..46, 45..55]}
+    ]
+
+    assert Day4.get_max_sleep_time(guards) == {"10", 50, 24}
+  end
+
+  test "range containing" do
+    assert Day4.range_containing([5..25, 30..55, 24..29]) == 5..55
+    assert Day4.range_containing([40..50, 36..46, 45..55]) == 36..55
+  end
+
+  test "most frequent sleep time" do
+    guards = [
+      {"10", [5..25, 30..55, 24..29]},
+      {"99", [40..50, 36..46, 45..55]}
+    ]
+
+    assert Day4.get_most_frequent_sleep_time(guards) == {"99", 45, 3}
+  end
+
+end
\ No newline at end of file