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: ['c', 'k', 'I', 'B', 'K', '7093', 'k', '9221', '5729', '5567', '3951', '1425', '8441', 'Y']

3, 11, 9, 2, 11, 7093, 11, 9221, 5729, 5567, 3951, 1425, 8441, 25