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: ['i', 'H', '4947', 'a', 'v', 'D', 'r', 'z', 'G', 'e', 'R', '2197', 'Y', '571', 'a', 'Y', 'm', 'E', 'T', 'N', 'T', 'K', 'I', '4665', 'e', 'f', 'q', '2033', 'q']

9, 8, 4947, 1, 22, 4, 18, 26, 7, 5, 18, 2197, 25, 571, 1, 25, 13, 5, 20, 14, 20, 11, 9, 4665, 5, 6, 17, 2033, 17