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: ['x', 't', 'Z', '9827', 'k', 's', 'W', 'E', 'n', 'm', 'F', 'f', 'h', 'Q', '1885', 't', '6551', '8989', '9677', 'w', 'Z', 'U', '3721', '1577', '3333', '4311', 'G', 'i', '6495', 'd', '6255', 'h', '2133', '1797', 'u', 'q']

24, 20, 26, 9827, 11, 19, 23, 5, 14, 13, 6, 6, 8, 17, 1885, 20, 6551, 8989, 9677, 23, 26, 21, 3721, 1577, 3333, 4311, 7, 9, 6495, 4, 6255, 8, 2133, 1797, 21, 17