#include <iostream>
#include <vector>
#include <algorithm>
#include <map>

using namespace std;
using ll = long long;

const int INF = 100100100;

ll gcd(ll a , ll b){
    if(a < b)swap(a , b);
    if(a % b == 0)return b;
    else return gcd(b , a % b);
}

int main(){
    int d1 , d2;
    cin >> d1 >> d2;
    {
        if(d1 == d2){
            cout << 4 << endl;
            exit(0);
        }
        else if(d1 > d2){
            cout << 0 << endl;
            exit(0);
        }
    }
    long double h2 = (d1*d1*d1*d1) / (d1*d1 + d1*d1);
    if(d1*d1 < h2)cout << 100 << endl;
    else if(d1*d1 == h2)cout << 4 << endl;
    else cout << 8 << endl;
    
    return 0;
}