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: ['723', 'x', 'Q', '9731', 'K', '6913', 'J', '8107', '5801', 'a', '597', 's', 'C', '1527', '4867', 's', '379', 'm', 'B', '3007', '7973', 'v', 'F', '1601', 'q', '295', 'D', 'q', 'o', '3143', '6809', 'F', '8013', '7877', '9773']

723, 24, 17, 9731, 11, 6913, 10, 8107, 5801, 1, 597, 19, 3, 1527, 4867, 19, 379, 13, 2, 3007, 7973, 22, 6, 1601, 17, 295, 4, 17, 15, 3143, 6809, 6, 8013, 7877, 9773