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: ['A', 'A', 'X', '9805', 'E', 'l', '2307', 'J', '9425', 'a', 'l', 'G', '5307', '3125', 's', 's', '5389', 'j', '8679', 'o', '2659', '9285', '1277', '3833', 'S']

1, 1, 24, 9805, 5, 12, 2307, 10, 9425, 1, 12, 7, 5307, 3125, 19, 19, 5389, 10, 8679, 15, 2659, 9285, 1277, 3833, 19