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: ['8501', '1641', '7935', '5521', '2859', '8093', '2163', 'G', '8265', '4337', 'D', 'C', '4855', '2059']

8501, 1641, 7935, 5521, 2859, 8093, 2163, 7, 8265, 4337, 4, 3, 4855, 2059