#include <bits/stdc++.h>
using namespace std;
int main(){
  int N, X, Y;
  cin >> N >> X >> Y;
  vector<int> R(N);
  for (int i = 0; i < N; i++){
    cin >> R[i];
  }
  long long mx = R[0];
  for (int i = 1; i < N; i++){
    mx += R[i] * 2;
  }
  long long mn = R[0];
  for (int i = 1; i < N; i++){
    mn -= R[i] * 2;
  }
  mx = min(mx, (long long) 1500000000);
  mn = max(mn, (long long) 0);
  if (mx * mx < (long long) X * X + (long long) Y * Y){
    cout << "No" << endl;
  } else if (mn * mn > (long long) X * X + (long long) Y * Y){
    cout << "No" << endl;
  } else {
    cout << "Yes" << endl;
  }
}