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', '1033', '3399', '1065', '277', 'M', 'j', 'W', 'q', 'a', 'r', '1015', 'T', 'n', '8007', 'r', '1311', 'N', 'S', '8515', '8559', 'V', 'J', 'H', '8621', '8203', '3151', 'z', '6273']

14, 1033, 3399, 1065, 277, 13, 10, 23, 17, 1, 18, 1015, 20, 14, 8007, 18, 1311, 14, 19, 8515, 8559, 22, 10, 8, 8621, 8203, 3151, 26, 6273