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', 'w', '7417', '1643', 'X', '1463', 'g', '8401', 'B', 'P', 'J', '6601', 'r', 'V', '5081', '3343', '465', 'X', '3209', '9579', '4415', '8625', 'o', 'O', 'l', '3223', '1339', 'v', '4519', '8139']

25, 23, 7417, 1643, 24, 1463, 7, 8401, 2, 16, 10, 6601, 18, 22, 5081, 3343, 465, 24, 3209, 9579, 4415, 8625, 15, 15, 12, 3223, 1339, 22, 4519, 8139