use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let a: Vec<(usize, usize)> = (0..3)
        .map(|_| {
            (
                itr.next().unwrap().parse().unwrap(),
                itr.next().unwrap().parse().unwrap(),
            )
        })
        .collect();

    let even = a.iter().filter(|&&x| x.0 % 2 == 0).count();
    println!(":-{}", if even == 1 || even == 3 { ")" } else { "(" })
}