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: ['7525', '3173', 's', '2361', '9863', '1321', '8099', 'h', '2555', 'o', 'w', 'F', '4207', 't', 'E', '91', '5769', 'c', '7833', 'J', 'c', 'd', '8549', 'y', 'Q']

7525, 3173, 19, 2361, 9863, 1321, 8099, 8, 2555, 15, 23, 6, 4207, 20, 5, 91, 5769, 3, 7833, 10, 3, 4, 8549, 25, 17