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: 1, 2, ['6999', 'M', 'I', 'b']

SOLUTION: 6999, I

PROBLEM: 2, 5, ['t', 'O', '6123', 'R', '415', 'v', 'p', '2573', 'g', '6645', 's', 'a']

SOLUTION:
O, p, a