#include < iostream >
using namespace std;

int menu()
{
  int x;

  cout << "Menu:\n\n";
  cout << "1) Circle" << endl;
  cout << "2) Triangle" << endl;

  cin >> x;

  switch(x)
  {
    case 1: cout << "Circle" << endl;
      break;
    case 2: cout << "Triangle" << endl;
      break;
    default: cout << "Error" << endl;
      break;
  }

  return 0;
}

int main()
{
  menu();
  return 0;
}