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: ['9523', '5779', '9345', 'W', 'R', 'V', 'u', 'd', '9485', '4919', 'e', 'h', 'Y', '8571', 'P', '1425', 'p', '2593', 'Q', '3883', '3093', 'C']

9523, 5779, 9345, 23, 18, 22, 21, 4, 9485, 4919, 5, 8, 25, 8571, 16, 1425, 16, 2593, 17, 3883, 3093, 3