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: ['n', 'X', 'd', 'c', '7447', 'S', 'y', 'D', '8045', '4061', 'S', '8213', 'U', 'L', '3323', '6689', '1741', 'V']

14, 24, 4, 3, 7447, 19, 25, 4, 8045, 4061, 19, 8213, 21, 12, 3323, 6689, 1741, 22