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: 2, ['X', 'O', 'D', '7293', 'r', 'C', '9075', 's', 'X', '3037', 'k', '9989', '9417', '7901', 'D', 'M', 'r', 'F', 'L', '1601', '8645', 'T']

SOLUTION: X, O, D, 7293, r, C, 9075, s, X, 3037, k, 9989, 9417, 7901, D, M, r, F, L, 1601

PROBLEM: 13, ['3869', 'm', '7909', 'y', '983', '1365', '3377', 'V', '4639', '9681', 'D', 'a', 'v', 'W', '2999', 'm', 'A', 'X', '3797', 'x', '3731', '5929', 'g', '1429', '4861', '1739', 'f', '8311']

SOLUTION: 3869, m, 7909, y, 983, 1365, 3377, V, 4639, 9681, D, a, v, W, 2999

PROBLEM: 4, ['2603', 'O', '8157', 'W', '9603', '3025', 'U', '4305', '9227']

SOLUTION:
2603, O, 8157, W, 9603