#include<bits/stdc++.h>

using namespace std;

using ll = long long;

#define rep(i, a, b) for(ll i = (ll)a; i < (ll)b; i++)
#define irep(i, v) for(auto i = (v).begin(); i != (v).end(); i++)
#define ALL(v) (v).begin(), (v).end()
#define SZ(v) (ll)(v).size()

const ll INF = 1e18;
const ll MOD = 1e9 + 7;

#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/cpp_int.hpp>
namespace mp = boost::multiprecision;
// 任意長整数型
using Bint = mp::cpp_int;

int main(){
  cin.tie(0);
  ios::sync_with_stdio(false);
  srand((unsigned)time(NULL));
  cout << fixed << setprecision(20);

  Bint n, x, y;
  cin >> n >> x >> y;

  Bint dis = x * x + y * y;
  Bint sum = 0;
  
  Bint mini = INF;
  rep(i, 0, n){
    Bint a;
    mini = min(a, mini);
    cin >> a;
    sum += 2 * a;
  }
  sum -= mini;

  if(dis > sum * sum) cout << "No" << endl;
  else cout << "Yes" << endl;


  return 0;
}