fn main() {
    let mut input = String::new();
    std::io::Read::read_to_string(&mut std::io::stdin(), &mut input).ok();
    let input: Vec<usize> = input.split_whitespace().flat_map(str::parse).collect();

    match (
        input[3..3 + input[1]].contains(&input[0]),
        input[3 + input[1]..].contains(&input[0]),
    ) {
        (true, true) => println!("MrMaxValu"),
        (true, false) => println!("MrMax"),
        (false, true) => println!("MaxValu"),
        (false, false) => println!("-1"),
    }
}