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: ['n', '337', '9271', '2769', 'F', '2095', '9547', 'y']

14, 337, 9271, 2769, 6, 2095, 9547, 25