#include <iostream>
using namespace std;
int main (){
int x,y;
cout<< "nhap x =";
cin>>x ;
cout <<"nhap y =";
cin>>y ;
cout << "x + y ="<< x+y<<endl ;
cout << "x - y ="<< x-y<<endl;
cout << " x * y ="<< x*y<<endl;
cout << "x/y =" << x/y<<endl;
return(0);
}