#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
using namespace std;

using ll = long long;
const int INF = 1e9;
const ll inf = 1LL<<60;

void solve() {
  ll n, x, y; cin >> n >> x >> y;
  vector<ll> r(n);
  for (int i=0; i<n; i++) cin >> r[i];
  if (n == 1) {
    cout << (x*x + y*y == r[0]*r[0] ? "Yes" : "No") << '\n';
  } else {
    ll s = accumulate(r.begin(), r.end(), 0LL)*2LL;
    cout << (x*x + y*y <= s*s ? "Yes" : "No") << '\n';
  }
}

int main() {
  ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
  // int t; cin >> t;
  /*while (t--)*/ solve();
}