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: ['y', 'e', '7947', 'E', 'n', 'T', 't', 'N', '7599', 'x', 'f', '9851', 'q', '1033', 'R', 'D', 'Q', 'h', 'H', '7871', 'I', '8297', '5715', '7103', 'P', '3985', 'L', 'V', '271', 'T']

25, 5, 7947, 5, 14, 20, 20, 14, 7599, 24, 6, 9851, 17, 1033, 18, 4, 17, 8, 8, 7871, 9, 8297, 5715, 7103, 16, 3985, 12, 22, 271, 20