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: ['3405', 'W', 'r', '3525', 'b', 'Q', 'j', 'V', '3073', 'A', 'w', 'v', '8467', 'A', '4559', '6543', '2195', 'x', 'x', 'I', 'D', 'p', 'D']

3405, 23, 18, 3525, 2, 17, 10, 22, 3073, 1, 23, 22, 8467, 1, 4559, 6543, 2195, 24, 24, 9, 4, 16, 4