#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#define rep(i, a, n) for(int i = a; i < n; i++)
using namespace std;
using ll = long long;
using P = pair<int, int>;

int main()
{
    double a, b;
    cin >> a >> b;
    double c = pow(a, 0.5);
    double d = pow(2, 0.5)*pow(b, 0.5)/2;
    //cout << c << " " << d << endl;
    if(c < d){
        cout << 0 << endl;
    }
    else if(c == d){
        cout << 4 << endl;
    }
    else if(c > d && c < pow(b, 0.5)){
        cout << 8 << endl;
    }
    else if(c == pow(b, 0.5)){
        cout << 4 << endl;
    }
    else{
        cout << 0 << endl;
    }
    return 0;
}