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: ['7497', '6517', '4699', '5705', '8363', 'h', 'f', 'V', 'z', 'v', 'R', '3321', '211', '2193', '6985', '4331', '2059', '2679', 'S', '5243', 'Q', 'r', 'R', '9173']

7497, 6517, 4699, 5705, 8363, 8, 6, 22, 26, 22, 18, 3321, 211, 2193, 6985, 4331, 2059, 2679, 19, 5243, 17, 18, 18, 9173