// Robin Hood code in C++
//g++ -Wextra -std=c++14 -Wpedantic -g robin_hood.cpp
#include <iostream>

int rich(){
  return 500; // "rich gives out 500 gold coins"
}

void print_ref(int &x){
  std::cout<<"argument int &\n";
  std::cout<<x<<"\n";
}
void print_ref(int &&x){
  std::cout<<"argument int && \n";
  std::cout<<x<<"\n";
}


int main()
{
  int poor = rich();     
  print_ref(poor);
  print_ref(rich());
}