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//coded by armend
#include <iostream>

using namespace std;
int oper(int n1, int n2,char shenja){
         switch(shenja){
          case '+':
                           return n1+n2;
                           case '-':
                                    return n1-n2;
                                    case '*':
                                             return n1*n2;
                                             case '/':
                                                      return n1/n2;
                                                      default :
                                                               return 'Error';        
         }
        }
int main(){ 
      int n1,n2;
      char shenja; 
      int n=1000; 
      while(n--){                                                                                                                                                             
         cin>>n1;
         cin>>shenja;
         cin>>n2;
         cout<<oper(n1,n2,shenja);
         cout<<endl;
         }
         return 0;
      }