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: ['7007', 'c', '4523', '8753', '9261', '53', '2781', '4197', 'F', '4159', 'B', 'D', '4245', 'C', '5163', '1445', '1659', '7391', 'q', 'D', 'v', 'j']

7007, 3, 4523, 8753, 9261, 53, 2781, 4197, 6, 4159, 2, 4, 4245, 3, 5163, 1445, 1659, 7391, 17, 4, 22, 10