import java.util.*;

public class Exercise133{
  public static void main (String[] args){

    Scanner sc = new Scanner(System.in);

    int x = sc.nextInt();
    int y = sc.nextInt();

    double r = Math.sqrt(x * x + y * y);
    if(r % 1 == 0){
      System.out.println((int)(r * 2 + 1));
    }else{
      System.out.println((int)(Math.ceil(r * 2)));
    }
	}
}