#include<iostream>
#include<cmath>

using namespace std;

#define NMAX 1000000

int main(){

	long long Xp,Yp;
	double ans;

	cin>>Xp>>Yp;

	ans=0;
	while(ans*ans/4<=Xp*Xp+Yp*Yp) ans++;

	cout<<ans<<endl;
}