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, ['u', 'Q', '5689', '2415', 'X', 'q', '743']

SOLUTION: u, Q, 5689, 2415, X

PROBLEM: 3, ['9777', '5813', 'b', '6431', 'N', 'I', '5109', '3441', '6915', 'p', '6227', '1815', '3195', '8763', 'F', '6837', '8463']

SOLUTION: 9777, 5813, b, 6431, N, I, 5109, 3441, 6915, p, 6227, 1815, 3195, 8763

PROBLEM: 3, ['Z', '1247', 'v', 't', '5039', 'o', 's']

SOLUTION:
Z, 1247, v, t