fn main() {
    let x = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        line.trim().parse::<usize>().unwrap()
    };

    let season = if x <= 2 || x == 12 {
        "winter"
    } else if x <= 5 {
        "spring"
    } else if x <= 8 {
        "summer"
    } else {
        "fall"
    };
    println!("{}", season);
}