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.

Example Input: ['c', 'W', '9815', 'X', 'q', '8309', '7153', 'G', '7877', '6843', 'E', '7631', '4251', '9299', 'y']
Example Output: 3, 23, 9815, 24, 17, 8309, 7153, 7, 7877, 6843, 5, 7631, 4251, 9299, 25

Example Input: ['e', 'a', '3337', 'R', 'H']
Example Output: 5, 1, 3337, 18, 8

Example Input: ['547', 'l', '3545', '125', 'M', '9923', 'I']
Example Output:
547, 12, 3545, 125, 13, 9923, 9