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: ['D', 'i', 'X', '8659', '1605', 'C', 'b', '1791', '2777', '3237', 'V', 'k', '1639', '8827', 'M', 'I', 'p', 'x', 'v', 'A', '8507', '8657', 'V', 'k', 'o', '265', '1177', '7805', '9309', '8029', 'x', '1745', '4059', 'E', '2691', 'j', 'C', 'X']

4, 9, 24, 8659, 1605, 3, 2, 1791, 2777, 3237, 22, 11, 1639, 8827, 13, 9, 16, 24, 22, 1, 8507, 8657, 22, 11, 15, 265, 1177, 7805, 9309, 8029, 24, 1745, 4059, 5, 2691, 10, 3, 24