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: ['3985', '7397', '4827', '1039', '9977', 'K', '2691', 'Q', '211', 'Z', '7765', 'n', 'Y', 'a', 'p', '243', '9863', 'L', 'H', '2485', '5465', 'J', 'i', '1025', '9661', '5709', 'd', 'e', 'G', '6859', '4813', '2625', 'J', 'm', 'u', 'p', '1809', '7535', '6957', '8915']

3985, 7397, 4827, 1039, 9977, 11, 2691, 17, 211, 26, 7765, 14, 25, 1, 16, 243, 9863, 12, 8, 2485, 5465, 10, 9, 1025, 9661, 5709, 4, 5, 7, 6859, 4813, 2625, 10, 13, 21, 16, 1809, 7535, 6957, 8915