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', 'H', 'Q', '8897', 's', 'N', '5461', '5405', '6783', '3161', '6669', 'Y', '3237', 'L', '8991', '4355', '4325', 'J', 'P', 'M', 'i', 'r', '9135', '6051', '5353', '9779', 'V']

12, 8, 17, 8897, 19, 14, 5461, 5405, 6783, 3161, 6669, 25, 3237, 12, 8991, 4355, 4325, 10, 16, 13, 9, 18, 9135, 6051, 5353, 9779, 22