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: 3, ['O', '4045', 'd', 'r', 'h', '3903', 'I', '5309', '7833', 'c', '7265', 'X']

SOLUTION: O, 4045, d, r, h, 3903, I, 5309, 7833

PROBLEM: 11, ['5031', '5005', 'c', '3503', '973', 'I', 'K', 'G', '9011', '1023', 'G', '3781', 'f', '6821', 'T', '3717', 'L', '8655', '449', '7553', '791', '247', '2187', 'A', 'r', '4941', '2119', '1935', '811']

SOLUTION: 5031, 5005, c, 3503, 973, I, K, G, 9011, 1023, G, 3781, f, 6821, T, 3717, L, 8655

PROBLEM: 1, ['6613', '6849', '8471', '9661', '7829']

SOLUTION:
6613, 6849, 8471, 9661