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: ['9177', 'O', 'u', 'Y', 'G', '549', '5489', '5093', 'A', 'O', '3231', 's', 't', '9315', 'B', 'Y', 'n', '8751', 'G', 'L', '1183', '337', 'Y', '6585', '65', 'B', 'N', '6033', 'y', '2503', '3725', 'O', 'S']

9177, 15, 21, 25, 7, 549, 5489, 5093, 1, 15, 3231, 19, 20, 9315, 2, 25, 14, 8751, 7, 12, 1183, 337, 25, 6585, 65, 2, 14, 6033, 25, 2503, 3725, 15, 19