#### Merging Sorted Array of Integers

You are given two sorted arrays of integers as arguments. Return a new array combining elements from both arrays in sorted order.

There will never be duplicate integers in either array.

### Requirements

- Must return an array of integers
- Should work with both positive and negative integers

#### Example #1

```
solve([1, 10, 20], [2, 3, 15])
> [1,2,3,10,15,20]
```

#### Example #2

```
solve([-1, 0, 5], [-2, 3, 15])
> [-2,-1,0,3,5,15]
```