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, ['n', 'y', 'k', 'F', '55']

SOLUTION: n, y, k, F

PROBLEM: 1, ['n', '2253', '7809', 'U', 'X', '5899', 'R', '6509']

SOLUTION: n, 2253, 7809, U, X, 5899, R

PROBLEM: 7, ['U', 'F', '4931', '2579', '2345', 'u', '2565', '3583', '8437', '2073', 'D', '7579', 'Q', '303', '181', 'W', '8369', 'h', 'Q', 'K', 'y', 'R', '9315']

SOLUTION:
U, F, 4931, 2579, 2345, u, 2565, 3583, 8437, 2073, D, 7579, Q, 303, 181, W