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: ['1033', 'b', '1613', 'r', '561', '8209', '3541', 'J', 'w', '3913', '6135', 'X', 's', 't', '8705', '5729', '4865', '5267', 'b', 'v']

1033, 2, 1613, 18, 561, 8209, 3541, 10, 23, 3913, 6135, 24, 19, 20, 8705, 5729, 4865, 5267, 2, 22