use std::io::Read;

fn main() {
	let mut s = String::new();
	std::io::stdin().read_to_string(&mut s).ok();
	let n: Vec<i64> = s.split_whitespace().flat_map(str::parse).collect();
	println!(
		"{} {}",
		n[0] * n[2] - n[1] * n[3],
		n[0] * n[3] + n[1] * n[2]
	)
}