#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,n) for (int i=0;i<(int)(n);i++)

ll d2(ll x){
  double y=x;
  y=y*y;
  if(y>=4e18) return 4e18;
  else return x*x;
}

int main(){
  int n,x,y;
  cin>>n>>x>>y;
  vector<int> r(n);
  sort(r.begin(),r.end());
  ll rs=0;
  rep(i,n){
    cin>>r.at(i);
    rs+=r.at(i)*2;
  }
  rs-=r.at(0);
  ll fxy=ll(x)*x+ll(y)*y;
  ll rrs=d2(rs);
  if(rrs<fxy) cout<<"No"<<endl;
  else cout<<"Yes"<<endl;
}