I am trying to conceptualize the iteration of two loops

```
numbers_array = [1,2,3,4,5,6,7,8,9,10]
add_to_array = [1,2,3,4]

```

While the `numbers_array` iterates, `add_to_array` iterates simultaneously adding both elements together at the same time. The caveat is once `add_to_array` reaches the end, it starts over adding its element to the next index in `numbers_array`. So at `numbers_array[4]` we would be adding `add_to_array[0]` then adding `numbers_array[5]` to `add_to_array[1]` and so on. This process would repeat until we reach the end of the `numbers_array`.

Any input would be greatly appreciated!