#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000

int ans[10000010];

int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    int X, Y;
    cin >> X >> Y;
    REP(x, -3200, 3200) {
        REP(y, -3200, 3200) {
            if (x * x + y * y <= 10000000)
                ans[x * x + y * y]++;
        }
    }
    int m = 0;
    REP(i, X, Y) m = max(m, ans[i]);
    cout << m << endl;

    return 0;
}