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', '5049', '5105', 'V', 'q', 'F', 'y', '4889', '7555', 'b', 'S', '8883', 'P', '9093', 'm', '8473', 'k', '643', '7737', 'C', '3659', 'K', '4623', 'E', '1141', 'P', '3383', '317', 'S', 'w', '7525', 's', 'Q', 'I', '8215', 'f', 'v', '7789']

3, 5049, 5105, 22, 17, 6, 25, 4889, 7555, 2, 19, 8883, 16, 9093, 13, 8473, 11, 643, 7737, 3, 3659, 11, 4623, 5, 1141, 16, 3383, 317, 19, 23, 7525, 19, 17, 9, 8215, 6, 22, 7789