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: ['785', '599', '317', 'n', '4577', 'i', 'Z', 'r', '9509', '8351', '8425', 'E', 't', '6071', 'A', '1191', '1181', 'Y', 'O', 'O', '7545', '6047', '4833', '3007', 'U', '5595', '4265', 'v', '2795', 'g']

785, 599, 317, 14, 4577, 9, 26, 18, 9509, 8351, 8425, 5, 20, 6071, 1, 1191, 1181, 25, 15, 15, 7545, 6047, 4833, 3007, 21, 5595, 4265, 22, 2795, 7