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: ['M', 'y', '7675', '1321', '8967', '2319', '5495', 'H', '5757', 'S', '8963', '7635', '9243', 'J', '5163', 'G', '3495', '3205', 'v', '5385', '6707', 'i', '7933', '7723', '5423', '8507', '2583', 'X', 'H', 'Y']

13, 25, 7675, 1321, 8967, 2319, 5495, 8, 5757, 19, 8963, 7635, 9243, 10, 5163, 7, 3495, 3205, 22, 5385, 6707, 9, 7933, 7723, 5423, 8507, 2583, 24, 8, 25