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: ['f', '9179', '4203', 'z', '2013', 'D', 'i', '655', '4269', '4695', '6717', 'r', 'j', 'h', 'Q', 'h', 'e', 'r', 'c', 'Y', '845', '7525', '3179', 'J', '7673', '7591']

6, 9179, 4203, 26, 2013, 4, 9, 655, 4269, 4695, 6717, 18, 10, 8, 17, 8, 5, 18, 3, 25, 845, 7525, 3179, 10, 7673, 7591