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, ['a', '3799', '5509', 'r']

SOLUTION: a, 3799

PROBLEM: 7, ['l', 'G', 'r', '4597', 'd', 'o', '3083', '6629', '125', 'N', 'g', 'N', 'O', '7059', 'A', 'P', 'T', 'c', 'Z', 'I', 'w', 'd', 'T', '6261']

SOLUTION: l, G, r, 4597, d, o, 3083, 6629, 125, N, g, N, O, 7059, A, P, T

PROBLEM: 7, ['361', 'z', '2143', 'z', 'z', 'Z', 'j', '9777', 'B', 'H', 'S', 'H', '8747', '4515', '4845', '7979', '9401', '5193', '6641', 'n', '4631', '6111', '4323', '161', 'o', 'v', 'R', 'D', '9687', '9871']

SOLUTION:
361, z, 2143, z, z, Z, j, 9777, B, H, S, H, 8747, 4515, 4845, 7979, 9401, 5193, 6641, n, 4631, 6111, 4323