#include <iostream>
 using namespace std;

int main ()

{
 int a, b, c=0;
 a=10 ;
 cout << " a="<< a<< endl;
 b =-a  ;
cout << " b="<< b<< endl;
if (b == c)
cout << " b is zero"<< endl;
cout << "b is just a boring non zero number!"<<endl;

return 0;
}