TASK DEFINITION: In this task, you are given inputs i and A, where i is an integer and A is a list. You need to list all the elements of A preceding the last i elements. i will always have a value less than the length of A.
PROBLEM: 3, ['x', 'P', 'P', '5915', 'c', '1339']

SOLUTION: x, P, P

PROBLEM: 2, ['559', '8799', '4791', '6513', '5939', '3477', 'w']

SOLUTION: 559, 8799, 4791, 6513, 5939

PROBLEM: 1, ['i', 'J', '469', '4979', '6981', 'O', 'x', 'U', 'S', '2945']

SOLUTION:
i, J, 469, 4979, 6981, O, x, U, S