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: ['5663', '4733', 'G', '2133', '4747', '2415', 'D', '8361', 'g']

5663, 4733, 7, 2133, 4747, 2415, 4, 8361, 7