Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
2, 3, ['a', '34', 'f', '931', '7', '3432', '13245', '762']
Solution: 34, 7, 762
Reason: Here, starting from 2nd element every 3rd element from the list are '34', '7', and '762'.

Now, solve this instance: 1, 1, ['S', 'g', 'r']
Student:
S, g, r