//	Ex351.cc

//	Sec. 3.5 of lecture
//	mask for odd numbers

#include <iostream.h>

main()
{
 const int   Maske = 1;		//	0..00000L
       int   i;
 
 cout << endl;
 cout << "   Eingabe einer ganzen Zahl: ";
 cin  >> i;                            //   read number
//	Check for odd number:
//	   Last bit remains unchanged for odd numbers  

 cout << "  " << i << " ist eine ";
 if ((i | Maske) == i)
  {
    cout << "ungerade";
  }
 else
  {
    cout << "gerade";
  }
 cout << " Zahl." << endl << endl;

}