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: ['x', '9031', '6249', '593', '6561', 'z', '3453', '6971', '3265', '7519', 'Q', 'V', '8891', '6263', '6341', '685', '1569']

24, 9031, 6249, 593, 6561, 26, 3453, 6971, 3265, 7519, 17, 22, 8891, 6263, 6341, 685, 1569