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: 11, ['L', 'u', '2683', '1891', 'F', 'Z', '1443', 'h', 'n', 'L', 'X', '2321', '6451', 'N', 'e', 'H', 'P', '6171', 'P', '929', 'i', '9873', '1097', 'z', '5943', '427', 'R', '175']

SOLUTION: L, u, 2683, 1891, F, Z, 1443, h, n, L, X, 2321, 6451, N, e, H, P

PROBLEM: 15, ['9033', '1873', 'n', '6945', '3003', '699', 'J', '3639', 'o', '7857', 'u', 'J', '8693', '935', 'd', 'A', '3509', 'c', 'L', 'H', '8777', 'W', 'G', '371', '6467', '6183', '9059', '4653', '8305', 'O']

SOLUTION: 9033, 1873, n, 6945, 3003, 699, J, 3639, o, 7857, u, J, 8693, 935, d

PROBLEM: 3, ['J', '4575', '4399', '533', '9673', 'I', '1341']

SOLUTION:
J, 4575, 4399, 533