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# Day 01
```elixir
Mix.install([
{:kino, "~> 0.14"}
])
example_input =
Kino.Input.textarea("example input:")
|> Kino.render()
real_input = Kino.Input.textarea("real input:")
```
## Common
<!-- livebook:{"reevaluate_automatically":true} -->
```elixir
defmodule AOC do
def parse(input) do
input
|> Kino.Input.read()
|> String.split("\n", trim: true)
|> Enum.map(&String.split(&1, ~r/\s/, trim: true))
|> Enum.reduce({[], []}, fn [left, right], {lefts, rights} ->
{[String.to_integer(left) | lefts], [String.to_integer(right) | rights]}
end)
end
end
```
## Part 1
<!-- livebook:{"reevaluate_automatically":true} -->
```elixir
defmodule Part1 do
def process({lefts, rights}) do
Enum.map([lefts, rights], &Enum.sort/1)
|> Enum.zip_with(fn [left, right] -> abs(left - right) end)
|> Enum.sum()
end
end
real_input
|> AOC.parse()
|> Part1.process()
```
## Part 2
<!-- livebook:{"reevaluate_automatically":true} -->
```elixir
defmodule Part2 do
def process({lefts, rights}) do
frequencies = Enum.frequencies(rights)
lefts
|> Enum.reduce(0, fn left, sum ->
sum + left * Map.get(frequencies, left, 0)
end)
end
end
real_input
|> AOC.parse()
|> Part2.process()
```
See source 
