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: ['893', '8399', 'L', 'v', '1531', 'b', '5701', 'X', '1725', '1721', '7443', '9651', 'J', '2237', '695', '5271', '5591', '7127', '8649', 'J', 'd', 'G', '4307', '1631', 'x', '2493', '9205', 'u', 'G', 'L', 'm', '1161', '7019', '5415', '1093', '4739', 'W', 'x']

893, 8399, 12, 22, 1531, 2, 5701, 24, 1725, 1721, 7443, 9651, 10, 2237, 695, 5271, 5591, 7127, 8649, 10, 4, 7, 4307, 1631, 24, 2493, 9205, 21, 7, 12, 13, 1161, 7019, 5415, 1093, 4739, 23, 24