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, ['7021', 'w', 'I', '2123', '5935', 'y', 'l', '2351', '3207', '9613', '963', '8925', '9673', 'X', 'z', 'X', 'K', 'w', '2433', 'O', '1495', 'Z', '957', 'R', 'l', '8745', '5553', 'R']

SOLUTION: 7021, w, I, 2123, 5935, y, l, 2351, 3207, 9613, 963, 8925, 9673, X, z, X, K

PROBLEM: 7, ['D', '3039', '9407', '8733', 'm', 'e', 'a', 'A', '595', 'c', 'M', '3127', 'k', '9125', 'd', 'u', 'x', '3267', '4779', '9825', '6539', '5735', '9161']

SOLUTION: D, 3039, 9407, 8733, m, e, a, A, 595, c, M, 3127, k, 9125, d, u

PROBLEM: 5, ['c', '3511', '1259', '4571', 'r', '2475', '5655', '6615', 'R', '8579', '5137', 'M', '3113', 'D', '2139', '3855', 'B', 'W', 'P', '997', '5825', 'L', '5579']

SOLUTION:
c, 3511, 1259, 4571, r, 2475, 5655, 6615, R, 8579, 5137, M, 3113, D, 2139, 3855, B, W