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', 'Q', 'h', 'T', '9659', 'v', '9805', 'g', 'V', 'B', '4647', 'T']

17, 17, 8, 20, 9659, 22, 9805, 7, 22, 2, 4647, 20