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: ['6175', '117', 'Q', '2443', '425', 'D', '4055', '8201', 'N', '6103', '1815', '9697', '899', 'o', '8925', '9959', 'h', 'B', '9965', '741', '5245', '6517', '3273', '61', 'b', '1945', '3201', '6279', 'f', '6451', '9495', 's', '4749', '3369', 'o', 'F']

6175, 117, 17, 2443, 425, 4, 4055, 8201, 14, 6103, 1815, 9697, 899, 15, 8925, 9959, 8, 2, 9965, 741, 5245, 6517, 3273, 61, 2, 1945, 3201, 6279, 6, 6451, 9495, 19, 4749, 3369, 15, 6