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: ['c', 'w', '5613', '9679', '6615', '3545', 'g', 'k', '2673', 'p', '6607', '2675', '1287', '8171', 'O', '741', 'a', 'u', 'M', '3073', '1029', '9141', 'O', '7835', '4189', 'R', '675', '5805', 'T', 'o', '9941', '1681', 'j', '1695']

3, 23, 5613, 9679, 6615, 3545, 7, 11, 2673, 16, 6607, 2675, 1287, 8171, 15, 741, 1, 21, 13, 3073, 1029, 9141, 15, 7835, 4189, 18, 675, 5805, 20, 15, 9941, 1681, 10, 1695