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:
2, 5, ['7731', '6511', 'f', '3575', 'I', '2971', '4355', '4439', 'H', 'o', 'l', '861', '1651', '251', '3637']
answer:
6511, 4355, 861


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


question:
1, 2, ['r', 'X', '4723', 'a', '2171', 'H', 'z']
answer:

r, 4723, 2171, z