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', '5281', 'a', 'a', 'i', '8345', '2337', '5685', 'O', 'F', 'I', '8311', '227']

7, 5281, 1, 1, 9, 8345, 2337, 5685, 15, 6, 9, 8311, 227