Create a function to concatenate two integer lists.
concat([1, 3, 5], [2, 6, 8]) ➞ [1, 3, 5, 2, 6, 8] concat([7, 8], [10, 9, 1, 1, 2]) ➞ [7, 8, 10, 9, 1, 1, 2] concat([4, 5, 1], [3, 3, 3, 3, 3]) ➞ [4, 5, 1, 3, 3, 3, 3, 3]
return