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: 7, ['8783', '5381', '2769', '6961', '5223', 's', 'U', 'i', 'd', 'F', '8159', 't', 'H', 'e', 't', '3747', '8047', '8479', '4807', 'T']

SOLUTION: 8783, 5381, 2769, 6961, 5223, s, U, i, d, F, 8159, t, H

PROBLEM: 5, ['a', 'a', '3961', '9489', 'b', '1505', 'W', '8567', '635', 'z', 'a', '139', '3987', 'C', 'D', '3401', 'l']

SOLUTION: a, a, 3961, 9489, b, 1505, W, 8567, 635, z, a, 139

PROBLEM: 4, ['2469', 'U', 'r', '8795', '341', '663', '6553', 'u', '8267', '8069', '3507', 'E', '3459', 'g', '2405', '4917', 'a']

SOLUTION:
2469, U, r, 8795, 341, 663, 6553, u, 8267, 8069, 3507, E, 3459