fn main(){
    let mut n = String::new();
    std::io::stdin().read_line(&mut n).ok();
    let n: usize = n.trim().parse().unwrap();
    println!("{}",
        match n {
            3 | 4 | 5 => "spring",
            6 | 7 | 8 => "summer",
            9 | 10 | 11 => "fall",
            12 | 1 | 2 => "winter",
            _ => unreachable!()
        }
    );
}