#include<iostream>
#include<conio.h>
using namespace std;
int main()
{

   int n;
   double total=0;
   double avr=0;
	cout<<"How many division students ? "<<endl;
	cin>>n;
	cout<<" Number of students :"<<n<<endl;
   double marks[n];
   cout<<"Write students grades :\n";
    for (int i=0; i<n;i++)
    cin>>marks[i];
for(int i=0;i<n;i++)
  total=total+marks[i];
  avr=total/n;
cout<<"Number of students ="<<n<<"\tTotal student Grades = "<<total<<"\tAverage number of students = "<<avr<<"\n\n\n"<<endl;


  if ( avr >9)
     cout<<" Teacher level is EXCELLENT"<<endl;

  else if ( avr >8)
    cout<<" Teacher level is VERY GOOD"<<endl;

  else if ( avr > 6 )
    cout<<" Teacher level is GOOD"<<endl;

else if ( avr >4)
    cout<<" Teacher level is NOT BAD"<<endl;

 else if ( avr >2 )
    cout<<" Teacher level is BAD"<<endl;

else {
    cout<<" Teacher level is FAIL"<<endl;

}
cout<<"\n\t-Thanks for the program -"<<endl;


getch();
}