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: ['N', 'v', 'c', '4721', '827', '3407', 'Y', 'a', '9277', '7071', 'T', '6293', 'M', '9313', '9385', '8553', 'A', '5715', 'Z', 'd', '3723', 'j', 'm', '6913', '6397', '2695']

14, 22, 3, 4721, 827, 3407, 25, 1, 9277, 7071, 20, 6293, 13, 9313, 9385, 8553, 1, 5715, 26, 4, 3723, 10, 13, 6913, 6397, 2695