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: 2, ['3893', '9705', '6893', 'E', 'm']

SOLUTION: 3893, 9705, 6893

PROBLEM: 2, ['4201', 'a', '3801', 'z']

SOLUTION: 4201, a

PROBLEM: 4, ['B', '5025', 'X', '5359', 'J', 'U', '4563', '5467', '2189', '4435', '1991', 'G', '1809', 'j', 'v', 'b', '3231', 'W', 'Z', 'q', 'G', '6735', '7673', '3109']

SOLUTION:
B, 5025, X, 5359, J, U, 4563, 5467, 2189, 4435, 1991, G, 1809, j, v, b, 3231, W, Z, q