import java.util.*;

public class Test39{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int Xp = sc.nextInt();
		int Yp = sc.nextInt();
		long D = (Xp*Xp)+(Yp*Yp);
		long i = 1;
		double d = Math.sqrt(D);
		
		System.out.println((int)((2*d)+1));
    }
}