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: ['4211', '1325', '6461', 'm', 'g', '3077', 'x', 'E']

4211, 1325, 6461, 13, 7, 3077, 24, 5