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: ['8011', '9519', '3307', '2413', '5581', '7607', 'b']

8011, 9519, 3307, 2413, 5581, 7607, 2