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, 4, ['1995', 'U', '3509', '999', '783', '5627', 'r', 'n', '6203', 'J', 'p', '9471']
answer:
U, 5627, J


question:
1, 2, ['C', '7967', 'i', 's']
answer:
C, i


question:
1, 7, ['7437', 'i', 'B', '1619', '8277', '6501', '5975', '1323', '2285', 'T', 'z', '8689', '161', 'S', 'B']
answer:

7437, 1323, B