#include <iostream>
#include <cstdlib>
using namespace std;
main()
{
	int n,ocjena,i;
	int j,b,c,zbir;
	string ime[30],prezime[30];
	float a[100];
	cout<<"Unesite broj ucenika koji su radili test"<<endl;
	bu:cin>>n;
	if(n<=30)
	{
		for(i=0;i<n;i++)
		{
			cout<<"Unesite ime"<<endl;
			cin>>ime[i];
			cout<<"Unesite prezime"<<endl;
			cin>>prezime[i];
			cout<<"Unesite ocjenu"<<endl;
			j:cin>>j;
			if((j<0)&&(j>5))
			{
				goto j;
			}
			cout<<"Unesite ocjenu"<<endl;
			b:cin>>b;
			if((b<0)&&(b>5))
			{
				goto b;
			}
			cout<<"Unesite ocjenu"<<endl;
			c:cin>>c;
			if((c<0)&&(c>5))
			{
				goto c;
			}
			zbir=j+b+c;
			a[i]=(float)zbir/3;
		}
	}
	else
	{
		goto bu;
	}
	for(i=0;i<n;i++)
		{
			cout<<ime[i] << prezime[i]<<"\t"<<"Prosjecna ocjena: "<< a[i]<<endl;
		}
}