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: ['1563', '949', 'E', 'T', '5751', '7039', '2057', '5117', 'q', 'j', '895', '9935', 'O', 'U', '2413', 'p', 'm', '1681', 'c', 'k', 'b', 'g', 'A', 'v', '5637', 'a', 'w', '1687', '5985']

1563, 949, 5, 20, 5751, 7039, 2057, 5117, 17, 10, 895, 9935, 15, 21, 2413, 16, 13, 1681, 3, 11, 2, 7, 1, 22, 5637, 1, 23, 1687, 5985