/* SUM, AVERAGE */
#include <iostream>  
#include <cstdlib>
using namespace std;
int main(int argc, char *argv[])
{  system("chcp 1253");
   int  number;            /* ακέραιοι */
   int  total = 0;         /* άθροισμα */
   int  count = 0;         /* πλήθος   */
   int terma;              // τερματιστής
   cout<<"===============AGNWSTO PLHTHOS AKERAIWN=============="<<endl;
   cout<<"DWSE TERMATISTH: ";
   cin>>terma;
   cout<<"DWSE AKERAIO GIA ATHROISH: ";
   cin>>number;
   while (number != terma)
   {  total += number;
      count=count + 1;
      cout<<"DWSE AKERAIO GIA ATHROISH: ";
      cin>>number;
      }
   cout<<"TELOS EISODOY.\n";
   cout<<"ATHROISMA -> "<<total<<"\n";
   cout<<"PLHTHOS -> "<<count<<"\n";
   if (count > 1) {cout<<"MESOS OROS (AKERAIOS) -> "<<total / count<<endl;
                   cout<<"MESOS OROS (PRAGMATIKOS) -> "<<(float) total / count<<endl;}
   else cout<<"MHDENIKO PLHTHOS ARITHMWN"<<endl;
   system("PAUSE");
   return 0;
}