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: ['5679', '127', '3013', '3221', '1723', 'M', '1827', 'k', '6521', '1507', '2431', 'P', '27', 'v', 'O', '3897', '2525', '4303', 'O', 'b', 'q', '3937', '1589', '3273']

5679, 127, 3013, 3221, 1723, 13, 1827, 11, 6521, 1507, 2431, 16, 27, 22, 15, 3897, 2525, 4303, 15, 2, 17, 3937, 1589, 3273