#include <iostream.h> // The C++ input and output definitions.
#include <iomanip.h> // The C++ input and output manipulator definitions.

void main(void)
{

  // Perform some tests !@#%$%^&*() "' cout cin void VOID ;<>> :) 

  cout << "Hello: " << 'H' << "ell" << "o" << endl;

  cout << "3.14159265358979323846 = " << 3.14159265358979323846 << endl;

  cout << "123 = " << 123 << endl;
  cout << "123 = " << 1 << 2 << 3 <<endl;
  cout << "1 23 = " << 1 << setw(2) << 2 << 3 <<endl;

  cout << "pi = " << setprecision(2) << 3.141593 << endl;
  cout << "pi = " << setprecision(3) << 3.141593 << endl;
}