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: ['4505', 'y', '2073', 'z', 'e', '5209', '4163', '1787', '6475', 'T', 'X', '9643', '5825', '7145', 'L', '5233', '4051', '8641', '8241', '4555', 'q', 'h', '3357', 'd', 'E', '5815', 'U', 'C', 'e', 'z', '7627', 'f', '6005', 'R', 'N', 'T', 'N']

4505, 25, 2073, 26, 5, 5209, 4163, 1787, 6475, 20, 24, 9643, 5825, 7145, 12, 5233, 4051, 8641, 8241, 4555, 17, 8, 3357, 4, 5, 5815, 21, 3, 5, 26, 7627, 6, 6005, 18, 14, 20, 14