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: ['y', 'L', 'h', 'y', 'B', '1405', '9933', 'R', 'v', '4085', 'E', 'a', '745', '7863', '7439', '5713', '7413', '3029']

25, 12, 8, 25, 2, 1405, 9933, 18, 22, 4085, 5, 1, 745, 7863, 7439, 5713, 7413, 3029