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: ['4359', '8325', '9237', '1989', 'L', '3059', '6707', '8519', '1733', '3079', 'm', 'V', '8517', '633', 'v', 'v', 'c', 'C', 'W', '7845']

4359, 8325, 9237, 1989, 12, 3059, 6707, 8519, 1733, 3079, 13, 22, 8517, 633, 22, 22, 3, 3, 23, 7845