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# Untitled notebook
## Section
```elixir
Mix.install([
{:kino, "~> 0.4.1"}
])
```
```elixir
input = Kino.Input.textarea("Input")
```
```elixir
edges =
input
|> Kino.Input.read()
|> String.split("\n", trim: true)
|> Enum.reduce(%{}, fn line, acc ->
[left, right] = String.split(line, "-")
acc = Map.update(acc, left, [right], &[right | &1])
if left == "start" or right == "end" do
acc
else
Map.update(acc, right, [left], &[left | &1])
end
end)
```
See source 
