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: ['O', '3219', 'G', '1495', '4977', 't', '277', '6411', 'I', 'o', '7879', '3811', '581', '7163', 'Q', '9781', '9539', '2763', 'V', '8255', '6099', '4211', '3687', 'g', '9241']
Example Output: 15, 3219, 7, 1495, 4977, 20, 277, 6411, 9, 15, 7879, 3811, 581, 7163, 17, 9781, 9539, 2763, 22, 8255, 6099, 4211, 3687, 7, 9241

Example Input: ['1207', 'B', '4273', '7081', '6009', '3933', '5589', '1543', '2631']
Example Output: 1207, 2, 4273, 7081, 6009, 3933, 5589, 1543, 2631

Example Input: ['2315', 'j', 'r', '2073', 'u', 'n', 'R', '6855', 'Y', 'u', 'i', 'Z', 'H', 't']
Example Output:
2315, 10, 18, 2073, 21, 14, 18, 6855, 25, 21, 9, 26, 8, 20