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: 5, ['U', '3021', 's', '2595', 'g', 'q', '3943', 'M', 'X', '9035', 't']

SOLUTION: U, 3021, s, 2595, g, q

PROBLEM: 1, ['m', 'M', '7431', '8295']

SOLUTION: m, M, 7431

PROBLEM: 4, ['Y', 'p', 'j', '7519', '6367', '3349', 'k', '6049', '8533', 'L', 'T', '2103', '6117', 'h', '8017', 'z', '3737']

SOLUTION:
Y, p, j, 7519, 6367, 3349, k, 6049, 8533, L, T, 2103, 6117