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: ['71', '3389', 'g', '9253', 'Q', '8659', 'n', '9229', 'H', 'B', '9265', '7815', '4963', '6433', '7587', '2823', 'K', 't', 'J', 'N', 'e', 'w', '6309', 'S', '2997', '2003', '9805', 'J', 'n']

71, 3389, 7, 9253, 17, 8659, 14, 9229, 8, 2, 9265, 7815, 4963, 6433, 7587, 2823, 11, 20, 10, 14, 5, 23, 6309, 19, 2997, 2003, 9805, 10, 14