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: ['D', '5295', 'k', '5001', '7685', 'K', '4833', 'T', '3235']

4, 5295, 11, 5001, 7685, 11, 4833, 20, 3235