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: ['5143', '9317', 'r', 'd', 'o', 'y', 'w', '4613', 'I', 'q', '8257', 'J', '3283', '1307', '8021', '6271', '2203', '5549', '8697', '2917', 'c', '2325', '6563', '6667', '6423', '5119', '7567', 'A', '6237', 'v', 'q', '7179']

5143, 9317, 18, 4, 15, 25, 23, 4613, 9, 17, 8257, 10, 3283, 1307, 8021, 6271, 2203, 5549, 8697, 2917, 3, 2325, 6563, 6667, 6423, 5119, 7567, 1, 6237, 22, 17, 7179