#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
  int N,X,Y;
  cin>>N>>X>>Y;
  int sum = 0;
  vector<int> A(N);
  for(int i=0;i<N;i++){
      cin>>A[i];
      sum += A[i];
      if(i != 0) sum += A[i];
  }
  if(sum-A[0] < A[0] && (A[0]-(sum-A[0]))*(A[0]-(sum-A[0])) > X*X+Y*Y){
      cout<<"No"<<endl;
      return 0;
  } 
  else if(sum*sum < X*X+Y*Y){
      cout<<"No"<<endl;
      return 0;
  }
  cout<<"Yes"<<endl;
}