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: ['c', '1119', '177', '4471', 'm', 'b', 'V', 'T', '3321']

3, 1119, 177, 4471, 13, 2, 22, 20, 3321