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: ['g', 'q', '5519', '8361', '6327', '3851', '2847', 'V', 'q', '5471', 'A', 'Q', 'o', 'b', '1859', '9263', '6779', 'a', '1933', '2355', 'c']

7, 17, 5519, 8361, 6327, 3851, 2847, 22, 17, 5471, 1, 17, 15, 2, 1859, 9263, 6779, 1, 1933, 2355, 3