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: 1, ['s', '7121']

SOLUTION: s

PROBLEM: 5, ['9903', 'P', '1623', '5483', 'D', 'W', '689', '5935', '1897', '233']

SOLUTION: 9903, P, 1623, 5483, D

PROBLEM: 2, ['2421', 'L', 'c', 'F']

SOLUTION:
2421, L