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: ['5777', '1601', '8877', '9189', '373', '7075', 'g', 'X']

5777, 1601, 8877, 9189, 373, 7075, 7, 24