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: ['6765', 'd', 'm', '4521', '6671', 'E', 'F', 'a', 'f', '687', 'J', 'V', 's', 'W', 'p', '5605', 'c', '3031', 'z', '4413', 's', '2549', 'w', '4117', '7027', 'O', '9901', 'd', '3673', 'w', 'b', '7209', 'C', 'i', 'A', 'q']

6765, 4, 13, 4521, 6671, 5, 6, 1, 6, 687, 10, 22, 19, 23, 16, 5605, 3, 3031, 26, 4413, 19, 2549, 23, 4117, 7027, 15, 9901, 4, 3673, 23, 2, 7209, 3, 9, 1, 17