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, ['v', 'R']
answer:
v, R


question:
1, 1, ['Y', 'E']
answer:
Y, E


question:
2, 4, ['k', '6767', 'j', '4053', 'g', 'e', '5201', '9639', 'B', 'W', '7339', 't', 'L', '635', '9775']
answer:

6767, e, W, 635