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.

['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

['T', '8333', 'C', '829', 'O', '8213', 'x', '5813', 'D', '7915', '6695', '6985', '667', 'R', '8127', '791']
20, 8333, 3, 829, 15, 8213, 24, 5813, 4, 7915, 6695, 6985, 667, 18, 8127, 791

['E', '8023', 'Y', 'z', 'O', 'l', 's', '5213', 'p', 'T', 'J', '4557', 'x', '5035', '3471', '6673', 'A', 'L', '277', 'Z', '2505', 'G', '2765']

5, 8023, 25, 26, 15, 12, 19, 5213, 16, 20, 10, 4557, 24, 5035, 3471, 6673, 1, 12, 277, 26, 2505, 7, 2765