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: ['1013', 'o', '5127', '7629', 'N', 'z', '1877', 's', 'q', '8819', 'o', '5615', 'h', '8157', '9777', 'J', '6049', 'y', 'o', '591', 'C', 'L', '3735', 'K', 'g', '9723', 'x', '2593', '1273', '9451', 'n', '7357', '8783', 'C', 'Z']

1013, 15, 5127, 7629, 14, 26, 1877, 19, 17, 8819, 15, 5615, 8, 8157, 9777, 10, 6049, 25, 15, 591, 3, 12, 3735, 11, 7, 9723, 24, 2593, 1273, 9451, 14, 7357, 8783, 3, 26