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, ['7269', 'B', 'R', '5389', '2109', '7927', '4151', '4607', 'L', 'o', '8509', 'm', 'Y', 'K', 'Z', '1593', 'q', '6293', 'a']

SOLUTION: 7269, B, R, 5389, 2109, 7927, 4151, 4607, L, o, 8509, m, Y, K, Z, 1593

PROBLEM: 2, ['k', 'k', 'A', '5571', '3033', '5481']

SOLUTION: k, k, A, 5571

PROBLEM: 1, ['x', '1121', '1149', '789', 'O', 'g', 'x', 'j', 'k', '997', 'x', 'U', 'T']

SOLUTION:
x, 1121, 1149, 789, O, g, x, j, k, 997, x, U