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: ['c', '6475', '5055', 'L', '7399', 'Y', 'L', 'I', 'p', 'V', '1879', '8101', 'o', 'h', '8093', '8215', 'T', 'X', 'v', 'd', '3929', '5355', 'R', 'p', '2765', 'G', '2531', '2527']

3, 6475, 5055, 12, 7399, 25, 12, 9, 16, 22, 1879, 8101, 15, 8, 8093, 8215, 20, 24, 22, 4, 3929, 5355, 18, 16, 2765, 7, 2531, 2527