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: ['Q', '6553', 'L', 'v', '3685', '5339', '9027', 'C', '1705', 'd', '2193']

17, 6553, 12, 22, 3685, 5339, 9027, 3, 1705, 4, 2193