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, 3, ['R', '6805', '2137', 'o', 'W', '5213', '6873']
answer:
R, o, 6873


question:
1, 3, ['W', 't', 'Q', 's', '3029', 'd']
answer:
W, s


question:
1, 3, ['6011', 'R', 'g', '521', '9181', 'h', 'r', 'v']
answer:

6011, 521, r