#include <algorithm>
#include <iostream>
#include <memory.h>
#include <iterator>
#include <cassert>
#include <fstream>
#include <iomanip>
#include <cstdlib>
#include <bitset>
#include <vector>
#include <cstdio>
#include <string>
#include <queue>
#include <deque>
#include <cmath>
#include <ctime>
#include <stack>
#include <set>
#include <map>

using namespace std;

const int N = (int)5000 + 10;
const int INF = (int)1e9 + 10;



int main ()
{
    //freopen("input.txt" , "r" , stdin);
    //freopen("output.txt" , "w" , stdout);
    ios_base::sync_with_stdio(false);

    long double x, y;
    cin >> x >> y;

    if(x * x >= (1.0 - y * y) * 2.0) {
        cout << "NO" << endl;
        return 0;
    }

    long double yF2 = 0.5 * abs(x) + 0.5;
    if(yF2 <= y) {
        cout << "NO" << endl;
        return 0;
    }

    if((x - 0.5) * (x - 0.5) < 0.3 - y * y) {
        cout << "NO" << endl;
        return 0;
    }

    if((x + 0.5) * (x + 0.5) < 0.3 - y * y) {
        cout << "NO" << endl;
        return 0;
    }

    cout << "YES" << endl;

    return 0;
}