Detailed Instructions: 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.
Q: ['7579', '1503', '5051', '3375', 'Z', 's', '1127', '2431', '6507']
A:
7579, 1503, 5051, 3375, 26, 19, 1127, 2431, 6507