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.

['b', 'y', '2013', '5323', '889', '6257', '8113', '6951', '9563', '8935', '6437', 'S', '5973', '2609', '2855', 'J', 'Z', '629', '7687', '8481', '2673', 'B', 'S']
2, 25, 2013, 5323, 889, 6257, 8113, 6951, 9563, 8935, 6437, 19, 5973, 2609, 2855, 10, 26, 629, 7687, 8481, 2673, 2, 19

['2803', '8285', 'U', 'O', '9329', '695', '3877', '1873', '2365', 'P', '153', 'D', '8495', '7593', '4067', 'Y', 'u', '4885', 'f', 'B', 'o', '8499']
2803, 8285, 21, 15, 9329, 695, 3877, 1873, 2365, 16, 153, 4, 8495, 7593, 4067, 25, 21, 4885, 6, 2, 15, 8499

['C', '1327', '6921', 'b', '1059', 'b', '4045', 'H', '69', '7571', 'F', 'I', 'M', 'q', '445']

3, 1327, 6921, 2, 1059, 2, 4045, 8, 69, 7571, 6, 9, 13, 17, 445