#### Convert 2D Array to a 1D Array

You are given a two dimensional array containing arrays of integers as an argument. Take each column and return the integer elements in a one dimensional array.

### Requirements

- Must return an array of integers
- Must account for inner arrays of all different sizes

#### Example #1

```
solve([
[1, 2, 3],
[4],
[5, 6, 7, 8]
])
> [1,4,5,2,6,3,7,8]
```

#### Example #2

```
solve([
[1, 2, 3, 4],
[5, 6, 7, 8],
[9, 10]
])
> [1,5,9,2,6,10,3,7,4,8]
```