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: 10, ['l', '2397', '5303', '7039', '23', 'L', '5851', '8793', '8045', '9677', '4237', '7223', 'm', '4389', '2653', '4567', '2453', 'W', 'c', 'J', '1149', 'X', '1137', '9719']

SOLUTION: l, 2397, 5303, 7039, 23, L, 5851, 8793, 8045, 9677, 4237, 7223, m, 4389

PROBLEM: 10, ['b', 'x', '7977', 'W', '1709', '9149', 'F', '375', '6819', 'c', '6487', 'W', '7829', '4627', 'f', 'k', '5761', 'u', '4451', '7011', 'v', 'C', 'K', 'n', '41', '7439', 'h', 'u']

SOLUTION: b, x, 7977, W, 1709, 9149, F, 375, 6819, c, 6487, W, 7829, 4627, f, k, 5761, u

PROBLEM: 6, ['X', 's', '9041', '7171', '2403', 'p', 'H', '4393', '5545', '1839', '7381', '6679']

SOLUTION:
X, s, 9041, 7171, 2403, p