/* 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  n = 0;             /* πλήθος   */
   cout<<"===============GNWSTO PLHTHOS AKERAIWN=============="<<endl;
   cout<<"DWSE TO PLHTHOS TWN AKERAIWN: ";
   cin>>n;
   for (int i=1; i<=n; i++)
   { cout<<"DWSE EPOMENO AKERAIO: ";
     cin>>number;
     total += number;
   }
   cout<<"TELOS EISODOY.\n";
   cout<<"ATHROISMA -> "<<total<<"\n";
   cout<<"PLHTHOS -> "<<n<<"\n";
   if (n > 0) {cout<<"MESOS OROS (AKERAIOS) -> "<<total/n<<endl;
               cout<<"MESOS OROS (PRAGMATIKOS) -> "<<(float) total/n<<endl;}
   else cout<<"MHDENIKO PLHTHOS ARITHMWN"<<endl;
   system("PAUSE");
   return 0;
}