//use std::io::Error;
//use std::fmt;

//pub trait Write {
//
//    fn write(&mut self, buf: &[u8]) -> Result<usize>;
//    fn flush(&mut self) -> Result<(), Error>;
//
//    fn write_all(&mut self, buf: &[u8]) -> Result<()>;
//    fn write_fmt(&mut self, fmt: fmt::Arguments) -> Result<()>;
//}

//fn main() {
//    type Miles = i32;
//
//    let x: i32 = 5;
//    let y: Miles = 5;
//
//    println!("x + y = {}", x + y);

    
//}

//type Thunk = Box<dyn Fn() + Send + 'static>;
//
//let f: Thunk = Box::new(|| println!("hi"));
//
//fn takes_long_type(f: Thunk) {
//}
//
//fn returns_long_type() -> Thunk {
//}

fn main() {
    print!("forever");

    loop {
        print!("and ever ");
    }
}