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: ['5089', '3797', '6503', 'W', 'J', 'k', 'f', 's', 'L', 'E', 'D', 'W', 'k', '7445', 'Q', '4833', 'Y', 's', '4249', '1181', 'y', '3535', '7499', 'j', '7485']

5089, 3797, 6503, 23, 10, 11, 6, 19, 12, 5, 4, 23, 11, 7445, 17, 4833, 25, 19, 4249, 1181, 25, 3535, 7499, 10, 7485