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: 3, ['Y', '3499', '2787', 'C', 'U', '4895']

SOLUTION: Y, 3499, 2787

PROBLEM: 5, ['O', 'g', 'W', '3913', '1413', '7113', '3145', 'Q', '111', '4643', 'm']

SOLUTION: O, g, W, 3913, 1413, 7113

PROBLEM: 3, ['5307', '4349', '9345', 'C', '1871', '3977']

SOLUTION:
5307, 4349, 9345