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: ['6633', '9971', 'w', '9655', '5759', '8673', 'q', '5355', 'J', 'z', 'y', 'C', '925']

6633, 9971, 23, 9655, 5759, 8673, 17, 5355, 10, 26, 25, 3, 925