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: ['5241', 'g', 'F', 'W', '4407', '7557', '7601']

5241, 7, 6, 23, 4407, 7557, 7601