use std::io;

fn main() -> io::Result<()> {
    let mut buf = String::new();
    io::stdin().read_line(&mut buf)?;
    read_args!(usize: arg1 arg2 << buf);
    /* PROTOTYPE *
    let arg1: i64;
    let arg2: i64;
    {
        let mut arg_iter = buf.trim_end().split(' ').filter_map(|s| s.parse().ok());
        arg1 = arg_iter.next().unwrap();
        arg2 = arg_iter.next().unwrap();
        buf.clear();
    } */
    println!("{}, {} ", arg1, arg2);
    Ok(())
}

#[macro_export]
macro_rules! read_args {
    ($t:ty : $($i: ident)* << $buf:ident) => {
        $(let $i: $t;)*
        {
            let mut arg_iter = $buf.trim_end().split(' ').filter_map(|s| s.parse().ok());
            $($i = arg_iter.next().unwrap();)*
            $buf.clear();
        }
    };
}