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: 1, ['W', '3125']

SOLUTION: W

PROBLEM: 3, ['6559', 'R', '4925', 'c', '5437', 'I', '6551', '2853', 'j', '2775', '3157', 'X', '1467', '869', '2837', '1001', 'e', '7835', '9059']

SOLUTION: 6559, R, 4925, c, 5437, I, 6551, 2853, j, 2775, 3157, X, 1467, 869, 2837, 1001

PROBLEM: 6, ['P', '5407', 'R', '1203', 'g', '2339', '9715', 'P', 'E', '513', '1593', '3467', 'L', '1769', 'e']

SOLUTION:
P, 5407, R, 1203, g, 2339, 9715, P, E