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.

['a', '9907', '6485', 'K', 'e', 'X', '687', '7687', '589', 'n', '7287', '9637']
1, 9907, 6485, 11, 5, 24, 687, 7687, 589, 14, 7287, 9637

['4657', 'F', '2009', '2077', '3793', 'o', '1349', '2879', '893', '3275', 'u', 'l', '4407', 'p', 'e', '2589', 'n', '6019', 'A', '8685', '6103', '995', 'R', '65', 'h', '8019', '2349', '2685', 'd', '9179', '1245', 'U', '3381', 'a', 'f', '9371', 'e', '1813']
4657, 6, 2009, 2077, 3793, 15, 1349, 2879, 893, 3275, 21, 12, 4407, 16, 5, 2589, 14, 6019, 1, 8685, 6103, 995, 18, 65, 8, 8019, 2349, 2685, 4, 9179, 1245, 21, 3381, 1, 6, 9371, 5, 1813

['J', '3373', '171', '3711', '6231', '8499', '8713', '5709', 'g', '2709', '691', '9363', 'h', 'f', '3195', '3969', '2605', '7477']

10, 3373, 171, 3711, 6231, 8499, 8713, 5709, 7, 2709, 691, 9363, 8, 6, 3195, 3969, 2605, 7477