#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(ri,n) for(int ri = (int)(n-1); ri >= 0; ri--)
#define rep2(i,x,n) for(int i = (int)(x); i < (int)(n); i++)
#define repit(itr,x) for(auto itr = x.begin(); itr != x.end(); itr++)
#define rrepit(ritr,x) for(auto ritr = x.rbegin(); ritr != x.rend(); ritr++)
#define ALL(n) begin(n), end(n)
using ll = long long;
using namespace std;

int di(double x, double y, double x1, double x2, double y1, double y2, double dd){
	double ax = y2- y1, ay = x1-x2, ac = (x2-x1)*y1 - (y2-y1)*x1;
	double r = fabs(ax*x + ay*y + ac);
	double l = ((ax*ax) + (ay*ay))*dd;
	r = r * r;
	// cerr << r << " " << l << endl;
	if(l < r)return 0;
	else if(l == r) return 4;
	else return 8;
}

int main(){
	int d1, d2;
	cin >> d1 >> d2;
	int ans = di(0, 0, sqrt(d2), 0, 0, sqrt(d2), d1);
	cout << ans << endl;
	return 0;
}