using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _07.GraduationPt._2
{
    class Program
    {
        static void Main(string[] args)
        {
            string name = Console.ReadLine();
            int countGrade = 0;
            double grade = 0;
            double average = 0;
            double lowGrade = 0;
            bool isExcluded = false;
            while (countGrade < 12)
            {
                grade = double.Parse(Console.ReadLine());
                if (grade >= 4)
                {
                    countGrade++;
                    average += grade;
                }
                else if (grade < 4)
                {
                    lowGrade++;
                    if (lowGrade == 2)
                    {
                        Console.WriteLine($"{name} has been excluded at {countGrade} grade");
                        isExcluded = true;
                        break;
                    }
                    countGrade++;
                }
            }
            if (isExcluded == false)
            {
                average /= 12;
                Console.WriteLine($"{name} graduated. Average grade: {average:f2}");
            }
        }
    }
}