#include <iostream>
#include <vector>
using namespace std;

int main() {
  cout << "Hello, World!";

  int n;
  vector<int>s(n);
  vector<int>e(n);
  cin>>n;
  for(int i=0;i<n;i++){
    cin>>s[i]>>e[i];
  }
  
  return 0;
}