#include <iostream>
using namespace std;

int main() {
  char a;
  int b,c;
  int32_t x;
  cout << "Podaj znak i dwie liczby calkowite:" << endl;
   while (cin >>a >> b>> c)
  {
   switch (a)
       {
         case '+':
           {
              x = b+c;
              cout << "wynik to: " << x << endl;
           }
              break;
         case '-':
           {
             x = b-c;
             cout << "wynik to: " << x << endl;
           }
              break;
         case '*':
           {
             x = b*c;
             cout << "wynik to: " << x << endl;
           }
              break;
         case '/':
           {
             x = b/c;
             cout << "wynik to: " << x << endl;
           }
              break;
         case '%':
           {
             x = b%c;
             cout << "wynik to: " << x << endl;
           }
              break;
        }
  }
	return 0;
}