TASK DEFINITION: In this task, you are given inputs k, i, and A, where k and i are integers and A is a list. You need to find every ith element of A starting from the kth element. The process stops when the position of the next ith element exceeds the length of the list.
PROBLEM: 1, 6, ['r', 'J', 'e', 'q', '6607', 'I', '4031', 'o', 'J', 'N', 'y', '4271', '2281', 's', '6641', '4101', 'J', '4363', 'K']

SOLUTION: r, 4031, 2281, K

PROBLEM: 1, 4, ['39', 'C', '1547', '6469', 'K', 'N', 'G', '9281', '5541', '8659', 'G']

SOLUTION: 39, K, 5541

PROBLEM: 1, 4, ['3903', '5847', '6299', 'O', 's', '8289', '1939', '1695']

SOLUTION:
3903, s