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: ['477', '5523', 'p', 'J', 'R', 's', 'N', 'f', 'O', '805', '4129', '4763', '3351', '1293', '4553', 'M', '3093', 't', '9941', '8835', 'M', '3883', '1245', 'z', 'K', 'L', 'q', '9561', '8243', 'a', '4355', '731', '9835', 'O', '4749', 's', 't', '8599', 'F', 'g']

477, 5523, 16, 10, 18, 19, 14, 6, 15, 805, 4129, 4763, 3351, 1293, 4553, 13, 3093, 20, 9941, 8835, 13, 3883, 1245, 26, 11, 12, 17, 9561, 8243, 1, 4355, 731, 9835, 15, 4749, 19, 20, 8599, 6, 7