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: ['V', 'C', '5645', 'D', '427', 'r', 'X', 'V', '2645', 'j', 'Q']

22, 3, 5645, 4, 427, 18, 24, 22, 2645, 10, 17