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: 7, ['P', '4745', '4089', '9623', 'y', 'H', '265', 'b', '4689', '7359', 'E', '3247', 'y', '3371', '1203', '7315', '951', '4745', '4381', '901', 'b', '1871', '9831', 'q', '7527', 'd']

SOLUTION: P, 4745, 4089, 9623, y, H, 265, b, 4689, 7359, E, 3247, y, 3371, 1203, 7315, 951, 4745, 4381

PROBLEM: 5, ['a', 'a', '3961', '9489', 'b', '1505', 'W', '8567', '635', 'z', 'a', '139', '3987', 'C', 'D', '3401', 'l']

SOLUTION: a, a, 3961, 9489, b, 1505, W, 8567, 635, z, a, 139

PROBLEM: 2, ['6589', '6533', 't', 'h', '9837', 'M', '8385', '3821', '7969', '8963', 'S', '4609', '9345', '4003']

SOLUTION:
6589, 6533, t, h, 9837, M, 8385, 3821, 7969, 8963, S, 4609