#include <iostream>
#include <algorithm>
#include <string>
#include <cstring>
#include <stack>
using namespace std;

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)
#define SQR(X) ((X)*(X))

typedef long long ll;
typedef unsigned long long ull;
typedef long double lb;
/* ここからが本編 */

int main(void)
{
   int i,j;
   int n;
   double a,b;
   int rep;
   cin >> a >> b;
   rep = (int)(hypot(a,b)*2);
   if(rep <= hypot(a,b)*2 ) rep++;
   cout << rep << endl;
   return 0;
}