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: ['F', '5627', 'z', 'N', 'e', 'r', '2399', 'r', '4993', '8347', 'S', '8093', 'g', '4469', 'K', 'Y', 'h', '8315', '2725', '279', '3233', '3723', 'a', 'm', 'V', 'd', 'H', '7793', '1497', 'K', '3197', '865', 'x', '6641', 'R']

6, 5627, 26, 14, 5, 18, 2399, 18, 4993, 8347, 19, 8093, 7, 4469, 11, 25, 8, 8315, 2725, 279, 3233, 3723, 1, 13, 22, 4, 8, 7793, 1497, 11, 3197, 865, 24, 6641, 18