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: ['g', 'K', 'y', '2553', '4459', 'c', 'n', 'B', '8569', 'F', 'B', '6667', 'B', '8595', '5999', '5615', '7431', 'j', '6805', '5825', 'F', 'h', 'U', 'I', '4835', '7771', 'q', 'D', '8983', 'f', '5163', '8287', '341', '3961', 'T']

7, 11, 25, 2553, 4459, 3, 14, 2, 8569, 6, 2, 6667, 2, 8595, 5999, 5615, 7431, 10, 6805, 5825, 6, 8, 21, 9, 4835, 7771, 17, 4, 8983, 6, 5163, 8287, 341, 3961, 20