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', '7563', '9817', '2877', 'J', '1599', '6123', 'G', '5087', '9777', 'T', 'M', '2215', 'K', 'R', 't', '9199', 'p', 'u', 'G', 'l', 'a', 'Z', '5007', 'D', 'V', 'J', '8381', 'L', '6315', '3297', '7269', '5655', '3673', '583', '1395', 'N', 'y']

17, 7563, 9817, 2877, 10, 1599, 6123, 7, 5087, 9777, 20, 13, 2215, 11, 18, 20, 9199, 16, 21, 7, 12, 1, 26, 5007, 4, 22, 10, 8381, 12, 6315, 3297, 7269, 5655, 3673, 583, 1395, 14, 25