Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['P', '9355', '4713', '4481', 'q', 'Q', '7693', '1681', 'p', '4313', 't', '8005', '8517', 'F', 'C', '8511', 'w', 'y', '2813', '7371', '9965', '37', '2797', 'w', 'c', 'd', 'r', 'A', '3413', '9629']

16, 9355, 4713, 4481, 17, 17, 7693, 1681, 16, 4313, 20, 8005, 8517, 6, 3, 8511, 23, 25, 2813, 7371, 9965, 37, 2797, 23, 3, 4, 18, 1, 3413, 9629