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: 5, ['9903', 'P', '1623', '5483', 'D', 'W', '689', '5935', '1897', '233']

SOLUTION: 9903, P, 1623, 5483, D

PROBLEM: 3, ['7269', 'B', 'R', '5389', '2109', '7927', '4151', '4607', 'L', 'o', '8509', 'm', 'Y', 'K', 'Z', '1593', 'q', '6293', 'a']

SOLUTION: 7269, B, R, 5389, 2109, 7927, 4151, 4607, L, o, 8509, m, Y, K, Z, 1593

PROBLEM: 4, ['3725', 'Y', '9791', 'X', 'A', '265', 'h', '6497', 'l', '3401', 'U', 'K']

SOLUTION:
3725, Y, 9791, X, A, 265, h, 6497