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: ['8411', '8435', 'D', 'k', 'L', 'h', '3729', '1635', '35', 'M', 'P', 'k', 'J', 'a', '7307', '8845']

8411, 8435, 4, 11, 12, 8, 3729, 1635, 35, 13, 16, 11, 10, 1, 7307, 8845