Task: Program Execution
Input (English): 23, ['A', 'f', '3591', 'B', 'B', '6797', '5703', '4077', 'X', '5121', '9615', 'I', 's', 'J', '8275', 'w', '6917', 'v', '379', '8961', '6749', '6197', '7785', 'W', 'S', 'K', 'U', '3723', 'b', 'a', '9453', 'i', 'o', '7627', '6961', 'M', 'a', '2537', 'i', '1565', '9151', 'z', '3079', 'p', 'O', 'B']
Output (English): A, W