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: ['n', '3231', '2569', '5977', '6447', 'B', 'm', '3975', 'n', '5337', '9265', '3319', '749', 'e', '5769', '359', '9873', 't', '773', 'F', 'q', 'G', '6597', '1377', '2669', '4645', 'U', 'L', 'e', 'f', '7193', '3335', '4741', '7261', '8385', '1779', '1127']

14, 3231, 2569, 5977, 6447, 2, 13, 3975, 14, 5337, 9265, 3319, 749, 5, 5769, 359, 9873, 20, 773, 6, 17, 7, 6597, 1377, 2669, 4645, 21, 12, 5, 6, 7193, 3335, 4741, 7261, 8385, 1779, 1127