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', 'Y', 'u', '9881', '4675', '9031', 'K', 'Q', 'Z', 'h', '5085', 'F', '6983', 'E', '8395', 'S', '5723', 'C', '4369', 'c', '1349', 'p', '2901', '6457', 'v', 'j', 'j', 'q', 'J', 'O']

17, 25, 21, 9881, 4675, 9031, 11, 17, 26, 8, 5085, 6, 6983, 5, 8395, 19, 5723, 3, 4369, 3, 1349, 16, 2901, 6457, 22, 10, 10, 17, 10, 15