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: ['7713', 'X', '4299', '5689', '8865', '9127', 'O', 'G', 'q', '951', 'r', '3173', 'H', '4131', 'p', 'F', 'l', 'I', '1147', '5267', 'e', 'r', '1261', 'Z', '5985', '5127', 'b']

7713, 24, 4299, 5689, 8865, 9127, 15, 7, 17, 951, 18, 3173, 8, 4131, 16, 6, 12, 9, 1147, 5267, 5, 18, 1261, 26, 5985, 5127, 2