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: 3, 7, ['D', 'i', 'f', '7151', '9971', '1427', 'F', 'u', 'g', '1409', 'v', '6959', 'L', 'K', '1857', 't', 'e', 'U', 'm', 'u', 'U', 'P', '6641', '6059', 'B', 'h', '3121']

SOLUTION: f, 1409, e, 6059

PROBLEM: 3, 10, ['R', '3553', '3599', 'P', 'C', 'Y', 'F', '2427', 'P', '4399', '8675', 'U', 'y', 'B', 'P', '5125', 'E', '8813', 'c', 'i']

SOLUTION: 3599, y

PROBLEM: 1, 3, ['8335', 'h', 'y', '5703', '3685', '6129', 'Z', '6107', 'S', '6797']

SOLUTION:
8335, 5703, Z, 6797