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+# Day 01
+
+```elixir
+Mix.install([:kino_aoc])
+```
+
+## Section
+
+<!-- livebook:{"attrs":"eyJhc3NpZ25fdG8iOiJwdXp6bGVfaW5wdXQiLCJkYXkiOiIxIiwic2Vzc2lvbl9zZWNyZXQiOiJBRFZFTlRfT0ZfQ09ERV9TRVNTSU9OIiwieWVhciI6IjIwMjQifQ","chunks":null,"kind":"Elixir.KinoAOC.HelperCell","livebook_object":"smart_cell"} -->
+
+```elixir
+{:ok, puzzle_input} =
+  KinoAOC.download_puzzle("2024", "1", System.fetch_env!("LB_ADVENT_OF_CODE_SESSION"))
+```
+
+```elixir
+{left, right} =
+puzzle_input
+|> String.split("\n", trim: true)
+|> Enum.map(fn line ->
+  line
+  |> String.split(" ", trim: true)
+  |> Enum.map(&String.to_integer/1)
+  |> List.to_tuple()
+end)
+|> Enum.unzip()
+```
+
+## Part 1
+
+```elixir
+left
+|> Enum.sort()
+  |> Enum.zip_with(Enum.sort(right), &abs(&1 - &2))
+|> Enum.sum()
+```
+
+## Part 2
+
+```elixir
+freq_left = Enum.frequencies(left)
+freq_right = Enum.frequencies(right)
+
+freq_left
+|> Enum.map(fn {id, n} -> id * n * Map.get(freq_right, id, 0) end)
+|> Enum.sum()
+```
+
+<!-- livebook:{"offset":946,"stamp":{"token":"XCP.yoOGtjwRQqzJzwUJIU8whgzKrfM5itcWL9AJcWUmjQHyohqeB9F_WH6pTqnTtTm4QERP5feEfLn6Vkjen95d23tI3VO-e9goRMqIc5jshNWfH59tFX7lzO2M7QPQ28nKicI","version":2}} -->