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: ['v', '571', 'Y', '7079', '6489', 'H', '2849', '4679', 'h', 'g', '4901', '2073', '6483', 'q', '1373', 'N', '6129', '4181', '1913']

22, 571, 25, 7079, 6489, 8, 2849, 4679, 8, 7, 4901, 2073, 6483, 17, 1373, 14, 6129, 4181, 1913