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.

Example Input: ['D', '4525', 'O', 'Y', '3927', '5539', '8589', '1733', 'C', '2841', 'f', '8139', 'q', '8847', '1455', 'B', '5705', '231', '6423', 'T', 'F', '5277', 'h', '55']
Example Output: 4, 4525, 15, 25, 3927, 5539, 8589, 1733, 3, 2841, 6, 8139, 17, 8847, 1455, 2, 5705, 231, 6423, 20, 6, 5277, 8, 55

Example Input: ['6881', 'F', '4759', '5797', '4879', '5761', '9913', '8509', 'c', 'X', 'U']
Example Output: 6881, 6, 4759, 5797, 4879, 5761, 9913, 8509, 3, 24, 21

Example Input: ['F', '3129', 'f', '3491', '7759', '821', '1851', '6409', 'l', 'U', '9741', 'T', 't', 'h', '81', '6469', 'b', 'T', 'I']
Example Output:
6, 3129, 6, 3491, 7759, 821, 1851, 6409, 12, 21, 9741, 20, 20, 8, 81, 6469, 2, 20, 9