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: ['i', '5937', 'q', 'b', '8395', '9629', 'G', 'N', 'x', 'o', '4087', 'L', '4059', 's', '6831', '4881', '3817', '2843', '6429', 'X', 'L', '5669', 'g', '1369', '6129', '5909', '3435', 'N', 'X', 'D', 'j', '2821', '5107', 'T', '8061', 'D', 'q', '3333']

9, 5937, 17, 2, 8395, 9629, 7, 14, 24, 15, 4087, 12, 4059, 19, 6831, 4881, 3817, 2843, 6429, 24, 12, 5669, 7, 1369, 6129, 5909, 3435, 14, 24, 4, 10, 2821, 5107, 20, 8061, 4, 17, 3333