fn main() {
    let (a, b) = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        let mut iter = line.split_whitespace();
        (
            iter.next().unwrap().parse::<i64>().unwrap(),
            iter.next().unwrap().parse::<i64>().unwrap(),
        )
    };
    let (c, d) = {
        let mut line = String::new();
        std::io::stdin().read_line(&mut line).unwrap();
        let mut iter = line.split_whitespace();
        (
            iter.next().unwrap().parse::<i64>().unwrap(),
            iter.next().unwrap().parse::<i64>().unwrap(),
        )
    };

    println!("{} {}", a * c - b * d, a * d + b * c);
}