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: ['4053', '8679', '3553', '359', 'F', '2231', '2943', 'Q', 'q', 'f']

4053, 8679, 3553, 359, 6, 2231, 2943, 17, 17, 6