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', 'N', '5839', '2389', '1633', '2519', '9451', 'j', 'o', '6367', 'l', 'k', '8093', 'H', 'n', 'F', 'W', '2631', 'm', '4151', '7285', '5281']

22, 14, 5839, 2389, 1633, 2519, 9451, 10, 15, 6367, 12, 11, 8093, 8, 14, 6, 23, 2631, 13, 4151, 7285, 5281