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: ['1327', 'u', 's', 'y', '4085', '3141', '8613']

1327, 21, 19, 25, 4085, 3141, 8613