fn main() {
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    let txt = s.trim();
    let sp: Vec<&str> = txt.split(" ").collect();
    let fst = sp[0];
    let snd = sp[1];
    if fst == "Sat" && snd == "Sun" || fst == "Sun" && snd == "Sat" {
        println!("8/33")
    } else if fst == "Sun" || fst == "Sat" {
        println!("8/32");
    } else {
        println!("8/31");
    }
}