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: ['y', '9125', 'o', '5109', 'e', '8851', '4229', '929', 'Q', '6075', '8081', 'B', 'h', 'A', '3641', '2989', 'H', '7431', 'J', '5329', 'y', 'H', 'Q', '5833', 's', '4797', '6011', 'G', '9455', 't', '9309', '4303', 'Q', 'L']

25, 9125, 15, 5109, 5, 8851, 4229, 929, 17, 6075, 8081, 2, 8, 1, 3641, 2989, 8, 7431, 10, 5329, 25, 8, 17, 5833, 19, 4797, 6011, 7, 9455, 20, 9309, 4303, 17, 12