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', 'l', 'M', '1741']

SOLUTION: U, l

PROBLEM: 8, ['1771', '9015', 'O', '5351', '8293', '8339', 'z', '333', '1363', 'c', 'd', '289', 'h', '6077', '9075', '5267', 'd', 'b', '7301']

SOLUTION: 1771, 9015, O, 5351, 8293, 8339, z, 333, 1363, c, d

PROBLEM: 3, ['6733', '2573', '8107', '809', 'P', 't', '429', '9499', '543', 't', 'W', '5017', 'a', '3399', 'v', '8393', 'f']

SOLUTION:
6733, 2573, 8107, 809, P, t, 429, 9499, 543, t, W, 5017, a, 3399