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: ['4399', '3863', 'h', '9799', '9123', 'Q', '8783', '8385', '9039', 'o', '4191', 'l', 'Y', 'n', '9911', 'M', '3383', 'H', 'i', 'e', '8115', 'O', '1237', 'E', '2513', 'l', '705', 's', '985', '5063', '1395', '6741', '9767', 'v', '4227', '3017']

4399, 3863, 8, 9799, 9123, 17, 8783, 8385, 9039, 15, 4191, 12, 25, 14, 9911, 13, 3383, 8, 9, 5, 8115, 15, 1237, 5, 2513, 12, 705, 19, 985, 5063, 1395, 6741, 9767, 22, 4227, 3017