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: ['Q', 'T', 'Z', '9365', 'Y', '5311', '887', 'e', '9451', 'T', '1307', 'Z', 'P', 'L', 'f', 'H', 'm', '3907', '9263', '1457', 'z', '2079', 'L', '9877', 'f', '4649', '1415', '4723', 'V', 'h', '6903']

17, 20, 26, 9365, 25, 5311, 887, 5, 9451, 20, 1307, 26, 16, 12, 6, 8, 13, 3907, 9263, 1457, 26, 2079, 12, 9877, 6, 4649, 1415, 4723, 22, 8, 6903