instruction:
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.
question:
3, ['P', 'u', 'X', 'j', '7477', '3877']
answer:
P, u, X


question:
4, ['W', 'U', '7989', '7921', '2625', '4897', '1429', '7431', 'v', 'J', 'G', '2459', 'h', 'D', 'O', 'j', '5037', '9775', '7017']
answer:
W, U, 7989, 7921, 2625, 4897, 1429, 7431, v, J, G, 2459, h, D, O


question:
6, ['2595', '3239', '2269', '2519', 'X', '9343', '4223', '7047', 'm', 'J', '6257', '453', '7505', '8689', '5807', 'G']
answer:

2595, 3239, 2269, 2519, X, 9343, 4223, 7047, m, J