#include <stdio.h>
#include <iostream>

using namespace std ;

int main()
{
     int x1 ;   
     cout << "Enter a number:"   ; 
     cin >> x1  ; 
 
     if( x1 % 2 == 0 ) 
                cout << "Number is even."  << endl ; 
     else
                cout << "Number is odd."  << endl ; 


     switch( x1 % 2 )    
        {  
           case 0 :     
               cout << "Number is even."  << endl ; 
               break  ; 
           case 1 :    
               cout << "Number is odd."  << endl ; 
               break  ;
           default: 
               cout << "Error."  << endl ;    
        }


     ( x1 % 2 ) ? cout << "Number is odd." :  cout << "Number is even."  ;

      cout << endl ; 
     return 0;
}