namespace

#include <iostream>

using namespace std;


namespace myspace {
  int x;
  string s;
}

namespace myspace2 {
  string s2;
}

using namespace myspace2;

int main()
{
  myspace::x = 5;
  myspace::s = "Hello!";
  cout << myspace::s << endl;

  s2 = "Hello 2";
  cout << s2 << endl;

  return 0;
}