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: ['g', 'D', '9085', 't', '4243', 'N', 'i', '6611', 'k', 'S', 'l', 'y', '4485', '6575', 'A', 'M', '8775', 'l']

7, 4, 9085, 20, 4243, 14, 9, 6611, 11, 19, 12, 25, 4485, 6575, 1, 13, 8775, 12