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: ['m', '1765', 'A', '9993', '2991', 'z', 'I', 'y', 'n', '231', '741', '6663', 'w', 'q', '6889', 'L', '4673', '5007', '8347', 'M', '175', '3715', 'M', 'H', '627', '6457', 'l']

13, 1765, 1, 9993, 2991, 26, 9, 25, 14, 231, 741, 6663, 23, 17, 6889, 12, 4673, 5007, 8347, 13, 175, 3715, 13, 8, 627, 6457, 12