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: ['9593', '9143', '9513', '341', '4957', 'W', 'U', '4951', 'P', 'i', 'F', 'q', 'y', '3429', 'k', '5527', 'M']

9593, 9143, 9513, 341, 4957, 23, 21, 4951, 16, 9, 6, 17, 25, 3429, 11, 5527, 13