# Walk on Matrix with Elixir

tldr; if you visualize walk in matrix, it looked like playing snake moving inward spiral motion starting at top left and ends somewhere in the middle. Of course, Elixir.

## Intro

Walk in Matrix is a coding puzzle in which you are given an input of 2-dimensional list of integers and returns a list of integers.

The input is something like this:

```
input =
[
[ 1, 2, 3, 4]
[10,11,12, 5]
[ 9, 8, 7, 6]
]
```

Then the output:

```
iex> walk_on_matrix(input)
[1,2,3,4,5,6,7,8,9,10,11,12]
```