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

using namespace std ;

int main()
{
	int x1 , y1 , z1  ;
	cout << "Enter 3 numbers:"   ;
	cin >> x1 >> y1 >> z1 ;

	if ( x1 < 10 && y1 > 5 )
	 cout << "x1 is less than 10 and y1 is greater than 5." << endl ;
	if ( x1 < 10 || y1 > 5 )
	 cout << "x1 is less than 10 or y1 is greater than 5." << endl ;
	if ( ! (x1 == 10)  )
	 cout << "x1 is not equal to 10." << endl ;

	z1 = ! x1 ;
	cout << "z1:" << z1 << endl ;

 return 0;
}