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: ['467', 'd', 'L', '9985', '1707', 'i', 'B', '7851', '9203', '1419', '8147', '4745', '9445', 'q', '7615', '1323', 'H', 'W', 'L', '2473', '7901', '7745', 'm', '9931', 'V', 'e', '8401', '1643']

467, 4, 12, 9985, 1707, 9, 2, 7851, 9203, 1419, 8147, 4745, 9445, 17, 7615, 1323, 8, 23, 12, 2473, 7901, 7745, 13, 9931, 22, 5, 8401, 1643