#include <iostream>
#include <math.h>
using namespace std;
int main(int argc, char* argv[])
{
	int X,Y;
	cin>>X>>Y;
	double R2=(double)(X*X+Y*Y);
	double R=sqrt(R2);
	int D;
	D=2*(int)R+1;
	cout<<D<<endl;
	return 0;
}