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: ['8255', 'y', 'T', '109', 'K', '7285', '8983', '7895', 'j', 'c', '4015', 'x', 'g', '1755', 'U', 'B', '6583', 'Q', '9265', '9447', '6147', 'x', 's', 'h', '2781', '2439', 'h', 'l', 'X', 'U', '7671', '933']

8255, 25, 20, 109, 11, 7285, 8983, 7895, 10, 3, 4015, 24, 7, 1755, 21, 2, 6583, 17, 9265, 9447, 6147, 24, 19, 8, 2781, 2439, 8, 12, 24, 21, 7671, 933