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: ['G', 'x', 'M', '8309', 'V', 'f', 'I', 'M', 'F', '1127', '1365', 'J', '3463', 'F', 'l', '5063', 'p', 'C', '7857', '8683', '7205', 'N', '9143']

7, 24, 13, 8309, 22, 6, 9, 13, 6, 1127, 1365, 10, 3463, 6, 12, 5063, 16, 3, 7857, 8683, 7205, 14, 9143