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: 4, ['781', 'x', 'v', 'G', 'k', '4317', '6855', 'D', 'S', 'z', '8161', '2497', '255', 'N', 'F', 'X', 'W', 'D', '2873', '8385', 'M', '8043', 'z']

SOLUTION: 781, x, v, G, k, 4317, 6855, D, S, z, 8161, 2497, 255, N, F, X, W, D, 2873

PROBLEM: 3, ['C', 'k', '2161', '5417', '4853', 'K', '5945', '2563', 'o', '6347', 'q', 'H', 'N', 'E', '859', 'P', 'n', 'G', '419', 'V', 'P', 'F', 'F', '7319', '1211', 'J', 'J', '8489', '5181', '2647']

SOLUTION: C, k, 2161, 5417, 4853, K, 5945, 2563, o, 6347, q, H, N, E, 859, P, n, G, 419, V, P, F, F, 7319, 1211, J, J

PROBLEM: 1, ['4907', '7219']

SOLUTION:
4907