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: ['P', '4337', 'q', '9481', '7859', 'E', '1813', '2611', '1647', 'X', '4807', '253', '3465', 'o', 'p', 'z', 'K', 'z', 'P', 'l', 'Z', '5635', '7601', 'u', 'e', '2255', 'v', '6357', 'S']
Example Output: 16, 4337, 17, 9481, 7859, 5, 1813, 2611, 1647, 24, 4807, 253, 3465, 15, 16, 26, 11, 26, 16, 12, 26, 5635, 7601, 21, 5, 2255, 22, 6357, 19

Example Input: ['4727', 'n', '983', '3675', 't', 'm', '2595', 'x', '9987', '2031', 'D', 'b', 'F', 'T', '3903', '6289', 'u', 'Y', 'l', '393', 'W', '8499', '1557', '7057', 'D', '5287', '2629']
Example Output: 4727, 14, 983, 3675, 20, 13, 2595, 24, 9987, 2031, 4, 2, 6, 20, 3903, 6289, 21, 25, 12, 393, 23, 8499, 1557, 7057, 4, 5287, 2629

Example Input: ['n', '6125', 'T', 'x', 'u', 'Z']
Example Output:
14, 6125, 20, 24, 21, 26