#include <iostream>
#include <vector>
#include <algorithm>
#include <math.h>

#define ALL(x) (x).begin(),(x).end()
#define REP(i,n) for(int i = 0;i < (n);i++)
#define PI 3.14159265359

using namespace std;

int main(){
    double r;
    int x,y;
    cin >> x >> y;
    r = sqrt(x*x+y*y);
    printf("%.0f\n",r*2+1);
    return 0;
}