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: ['F', '6083', '2855', 's', 'f', '917', '9037', '3111', 'Y', '4349', '4829', '1369', '5615', '8095', '3357', '2551', 'N', 'j', '9809', '1573', '101', 'L', 'N']

6, 6083, 2855, 19, 6, 917, 9037, 3111, 25, 4349, 4829, 1369, 5615, 8095, 3357, 2551, 14, 10, 9809, 1573, 101, 12, 14