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: ['Q', '581', '961', '9137', 'v', '8199', 'k', 'v', '1727', 'E', 'X', 'N', '3067', '1479', 'm', 'B']

17, 581, 961, 9137, 22, 8199, 11, 22, 1727, 5, 24, 14, 3067, 1479, 13, 2