#include <bits/stdc++.h>
#define REP(i, n) for (int i = 0; i < n; i++)
#define REPR(i, n) for (int i = n; i >= 0; i--)
#define FOR(i, m, n) for (int i = m; i < n; i++)
#define ALL(v) v.begin(), v.end()
using namespace std;
typedef long long ll;
typedef long double ld;
const double PI = acos(-1);
int main()
{
  double d1,d2;
  cin >> d1 >> d2;
  double a1 = sqrt(d1);
  double a2 = sqrt(d2) * cos(PI/4.0);
  if(a1==a2 || d1==d2) cout << "4\n";
  else if(a1>a2 && sqrt(d1)<sqrt(d2)) cout << "8\n";
  else cout << "0\n";
  return 0;
}