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: ['g', '9911', 'R', '1223', 'g', 'h', 'Q', '961', 'U', '2073', 'I', 'u', 'O', '2005', '1463', '157', '9717', '4917', '9425', '4273', 'w', 'Q', 'x', 's', '1239', 'g', 'c', '5819', 'C', '5593', 'T', '2375', 'h']

7, 9911, 18, 1223, 7, 8, 17, 961, 21, 2073, 9, 21, 15, 2005, 1463, 157, 9717, 4917, 9425, 4273, 23, 17, 24, 19, 1239, 7, 3, 5819, 3, 5593, 20, 2375, 8