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: ['L', 'F', '4093', '7625', 'V', '8419', '5815', 'E', 'r', '5169', '7815', '1737', 'z', '7427', '8543', '1441', '7967', 'K', 'N', '2879', 'h', '3079', '3809', 'i', 'e', 't', 'E', 'w', '2091', '4009', 'f', '2727', 'I']

12, 6, 4093, 7625, 22, 8419, 5815, 5, 18, 5169, 7815, 1737, 26, 7427, 8543, 1441, 7967, 11, 14, 2879, 8, 3079, 3809, 9, 5, 20, 5, 23, 2091, 4009, 6, 2727, 9