#include <iostream>
using namespace std;
int main()
{
cout << "2 + 2 = " << 2 + 2 << endl;
cout << "1 - 5 = " << 1 - 5 << endl;
cout << "2 * 9 = " << 2 * 9 << endl;
cout << "9 / 3 = " << 9 / 3 << endl;
cout << "9 / 2 = " << 9 / 2 << endl;
return 0;
}