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: ['1101', '9681', 'o', 'M', 'F', 'H', '4859', '5631', 'O', '4557', '1461', '2323', 'U', 'Z', 'W', '6785', '7671', '8225', 'f', '1939', '8653']

1101, 9681, 15, 13, 6, 8, 4859, 5631, 15, 4557, 1461, 2323, 21, 26, 23, 6785, 7671, 8225, 6, 1939, 8653