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: 1, ['a', 'k', 'B', '7647', '5407', 'f', '9239', '4391', '4439', 'y']

SOLUTION: a, k, B, 7647, 5407, f, 9239, 4391, 4439

PROBLEM: 1, ['4937', '4149', 'h', '3383', 'm', 'b', '575', '5173', '813', '2319', '6741', 'c', 'j', 's', '91', '6989']

SOLUTION: 4937, 4149, h, 3383, m, b, 575, 5173, 813, 2319, 6741, c, j, s, 91

PROBLEM: 3, ['1251', 'p', '2291', '8007', 'f', '631', '5863', '4701', 'E', '7069']

SOLUTION:
1251, p, 2291, 8007, f, 631, 5863