#include <iostream>
#include <math.h>
using namespace std;
int main(){
    int xp,yp,ans;
    cin>>xp>>yp;
    double r = sqrt(xp*xp+yp*yp);
    if(r ==(double)(int)r) ans = r*2+1;
    else ans = ((int)r +1)*2;
 cout << ans <<endl;   
}