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', '7761']

SOLUTION: A

PROBLEM: 3, ['5109', 'f', 'c', '8429', 'e', 'k', 'q', 'h', '9773', 'j', '6643', '2019', '2625', 'y', '375', '649', '9901', '6511', '9219', 'd']

SOLUTION: 5109, f, c, 8429, e, k, q, h, 9773, j, 6643, 2019, 2625, y, 375, 649, 9901

PROBLEM: 5, ['U', '291', 'D', 'E', 'q', '5443', '1735', 'p', 'C', 'a', '307', '4645', 'B', '1399', '9079', '7269', 'J', 'p', 'n', '2731']

SOLUTION:
U, 291, D, E, q, 5443, 1735, p, C, a, 307, 4645, B, 1399, 9079