ul.cc

#include <iostream>
#include <string>

using namespace std;

void
helloWorld(string say)
{
  cout << say << endl;
}

void
helloworld(string say)
{
  cout << say+say << endl;
}


int
main()
{
  string someValue = "Hello";
  string somevalue = "World";

  helloWorld(someValue+somevalue); // HelloWorld
  helloworld(someValue+somevalue); // HelloWorldHelloWorld

  return 0;
}