#include<iostream>
#include<cstdio>
#include<cstring>
#include <cstdlib>  
#include <cmath>   
#include<cctype>
#include<string>
#include<set>
#include <map>
#include<algorithm>
#include <functional>
#include<vector>
#include<climits>
#include<stack>
#include<queue>
#include <deque>
#include <climits>
#include <typeinfo>
#include <utility> 
#define all(x) (x).begin(),(x).end()
#define rep(i,m,n) for(int i = m;i < n;++i)
#define pb push_back
#define fore(i,a) for(auto &i:a)
#define rrep(i,m,n) for(int i = m;i >= n;--i)
#define INF INT_MAX/2
using namespace std;
using ll = long long;
using R = double;
const ll MOD = 1e9 + 7;
const ll inf = 1LL << 50;
struct edge { ll from; ll to; ll cost; };

int main(){
	int X, Y;
	cin >> X >> Y;

	vector<int>r(10000010,0);
	
	rep(x, -4000, 4000)rep(y, -4000, 4000) {
		if (x*x + y*y <= 10000005) {
			r[x*x + y*y]++;
		}
	}

	int ans = -1;
	rep(i, X, Y + 1) {
		ans = max(ans,r[i]);
	}
	cout << ans << endl;


	return 0;
}