fn getline() -> String{
        let mut __ret=String::new();
                        std::io::stdin().read_line(&mut __ret).ok();
                                        return __ret;
                                                }

fn main(){
        let ab : Vec<f64> = getline().trim().split(' ').map(|x| x.parse().unwrap()).collect();
        if (ab[1] / ab[0]) as i64 as f64 * ab[0] == ab[1] {
                println!("{}", ab[1] / ab[0]);
        } else {
                println!("NO");
        }
}