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: ['8325', '3237', '4941', '6605', 'x', '6489', 'm', '17', 'u', 'e', 'O', '409', 'u', 'R', 'o', 'n', 'g', '7351', '941', 'i', '4833', '9219', 'S', '5249', 't', '9203', '7', 'R', '9019', '2143', '549', '1261', '5353', 'I', 'y', '671']

8325, 3237, 4941, 6605, 24, 6489, 13, 17, 21, 5, 15, 409, 21, 18, 15, 14, 7, 7351, 941, 9, 4833, 9219, 19, 5249, 20, 9203, 7, 18, 9019, 2143, 549, 1261, 5353, 9, 25, 671