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, 4, ['4615', '4163', '4685', 'P', '8811', '3995', '1889', 'q', '3511', '5439', 'U', '9689', 'C', '6677', 'M', 'A', 'w', 'T', '8085', '4773']
answer:
4615, 8811, 3511, C, w


question:
1, 1, ['7735', 'C', 't']
answer:
7735, C, t


question:
1, 1, ['P', '633', 'x']
answer:

P, 633, x