#include <iostream>
using namespace std;

int main () 
{
int n,i,k,r,zbir;

cout << "Niz od:" << endl; 
cin >>n;
cout << "Unesi niz:" << endl; 
int  niz[n];
        for (i=1; i<=n; i++)
        {
         cin >>niz[i];   
        }
cout << "Unesi k:" << endl; 
cin >>k;
cout << "Unesi r:" << endl; 
cin >>r;
if (k<=n)
{
cout << "k-ti element niza:" << endl;
cout<<niz[k]<< endl;
}
else
{
cout << "Ne postoji:" << endl;
goto stop;
}
zbir=k+r;
if (zbir<=n)
{
cout << "k+r  element niza:" << endl;
cout<<niz[zbir]<< endl;
}
else
{
cout << "Ne postoji:" << endl;
goto stop;    
}     
        for (i=2; i<=n; i++)
        {
        zbir=k+r*i; 
            if (zbir<=n)
            {   
            cout << "k+" <<i<< "r element niza"<< endl;
            cout<<niz[zbir]<< endl;
            }
            else
            {
            goto stop; 
            }    
        } 
stop:                                
system("PAUSE");
return 0;
     
}