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', 'O', 'Q', '6937', '547', 'D', 'z', 'Q', '2257', '155', '3015', '2199', '5701', 'x', 'G', '4085', 'p', 'J', '291', '1433', 'y', 'z', '2247', 'a', '8965', '8261', 'Y', 'X', 'P', 'g']

17, 15, 17, 6937, 547, 4, 26, 17, 2257, 155, 3015, 2199, 5701, 24, 7, 4085, 16, 10, 291, 1433, 25, 26, 2247, 1, 8965, 8261, 25, 24, 16, 7