#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
//五則運算
//int x;
//int y;
int x = 23,y = 7;
cout<<"x+y ="<< x + y << endl;
cout<<"x-y ="<< x - y << endl;
cout<<"x*y ="<< x * y << endl;
cout<<"x/y ="<< x / y << endl;
cout<<"x%y ="<< x % y << endl;