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: ['n', '4605', '4379', 'F', '1933', '1135', '5067', 'B', '9273', 'p', 'I', '4371', 'f', 'N', '3867', 't', 'y', 'A', '9651', 'E', '3865', 'J', '8171', '8851', 'q', '4409', '7345', 'z']

14, 4605, 4379, 6, 1933, 1135, 5067, 2, 9273, 16, 9, 4371, 6, 14, 3867, 20, 25, 1, 9651, 5, 3865, 10, 8171, 8851, 17, 4409, 7345, 26