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.

['O', 'X', 'j', '6499', 'I', '359', '1913', 'M', '6771', 's', '1621', '8259', 'E', 'H', 'E', '3699', '3473', 'Q', 'c', 'A', '6265', 'n', 'L', '7003', 'H', '4743', '8579']
15, 24, 10, 6499, 9, 359, 1913, 13, 6771, 19, 1621, 8259, 5, 8, 5, 3699, 3473, 17, 3, 1, 6265, 14, 12, 7003, 8, 4743, 8579

['4085', '2565', '701', '1367', '9349', '7415', '3509', 'j', '7311', 'z', 'r', '1845', '5165', '3653', 't', '1379', '9281', '371', '4001', '1411', '3747', 'l', 'd', 'J', '6795', '7629', 'O', '1769', '9391', 'r', '3205']
4085, 2565, 701, 1367, 9349, 7415, 3509, 10, 7311, 26, 18, 1845, 5165, 3653, 20, 1379, 9281, 371, 4001, 1411, 3747, 12, 4, 10, 6795, 7629, 15, 1769, 9391, 18, 3205

['8437', '7453', '2137', '5063', 't', 'Q', 'C', '6581', '2773', 'c', 'P']

8437, 7453, 2137, 5063, 20, 17, 3, 6581, 2773, 3, 16