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: ['r', 'X', 'm', 'M', '9175', 'h', 'X', 'b', 'C', '7549', 'n', '625', '7781', '5805', 'u', 'n', 'Q', '7121', '2557', '5987', 'i', 'c', '4741', 'j', 'c', '2027', '6243', 'D', 'V', '4199', '4449']

18, 24, 13, 13, 9175, 8, 24, 2, 3, 7549, 14, 625, 7781, 5805, 21, 14, 17, 7121, 2557, 5987, 9, 3, 4741, 10, 3, 2027, 6243, 4, 22, 4199, 4449