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: ['1151', '6733', '3569', '1937', '7005', 'r', 'M', '2819', '357', '9671', 'h', '3589', 'A']

1151, 6733, 3569, 1937, 7005, 18, 13, 2819, 357, 9671, 8, 3589, 1