instruction:
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.
question:
1, 1, ['S', 'g', 'r']
answer:
S, g, r


question:
1, 1, ['2507', 'N']
answer:
2507, N


question:
1, 3, ['F', 'j', '865', 'D', '4647', 'w']
answer:

F, D


