fn main() {
	let mut xy = String::new();
	std::io::stdin().read_line(&mut xy).ok();
	let mut xy = xy.trim().split_whitespace();
	let x: f64 = xy.next().unwrap().parse().unwrap();
	let y: f64 = xy.next().unwrap().parse().unwrap();
	println!("{}", ((x * x + y * y).sqrt() * 2.) as i32 + 1);
}