#include <iostream>
#include <math.h>

using namespace std;

int main()
{ struct elev {char nume[20],pren[20];
unsigned n1,n2,n3,n4,n5;
float media;};
elev clasa[30]; int n,i,s,k;
cout<<"nr, de elevi din clasa "; cin>>n;
for (i=0;i<n;i++)
{cin.get(); cout<<"elevul "<<i+1<<endl;
cout<<"nume "; cin.get(clasa[i].nume,20); cin.get();
cout<<"prenume "; cin.get(clasa[i].pren,20); cin.get();
cout<<"nota 1 "; cin>>clasa[i].n1;
cout<<"nota 2 "; cin>>clasa[i].n2;
cout<<"nota 3 "; cin>>clasa[i].n3;
cout<<"nota 4 "; cin>>clasa[i].n4;
cout<<"nota 5 "; cin>>clasa[i].n5;
}
for (i=0;i<n;i++)
{s=0,k=0;
if (clasa[i].n1!=0) {s+=clasa[i].n1;k++;}
if (clasa[i].n2!=0) {s+=clasa[i].n2;k++;}
if (clasa[i].n3!=0) {s+=clasa[i].n3;k++;}
if (clasa[i].n4!=0) {s+=clasa[i].n4;k++;}
if (clasa[i].n5!=0) {s+=clasa[i].n5;k++;}
clasa[i].media=(float) s/k;}
for (i=0;i<n;i++)
{cout<<clasa[i].nume<<" "<<clasa[i].pren<<" ";
cout<<clasa[i].media<<endl;}}