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, ['y', 's', 'Z', '4013', 'R', '6789']

SOLUTION: y, s, Z, 4013, R

PROBLEM: 8, ['c', '4957', 'b', 'm', '4285', 'p', '4795', 'm', 'f', 'R', 'M', '375', '6087', 'J', '3193', 'F', '4517', 'L', 'm', '2611', '3395']

SOLUTION: c, 4957, b, m, 4285, p, 4795, m, f, R, M, 375, 6087

PROBLEM: 2, ['w', 'F', 'B', 'B', 'c', '6387', 'n', '1773', '4085', 'o', 'Q', '7409', '4675', 'n', '1619', 'g', '9265', 'A', 'm', 'v']

SOLUTION:
w, F, B, B, c, 6387, n, 1773, 4085, o, Q, 7409, 4675, n, 1619, g, 9265, A