using System;

namespace schoolEnd
{
    class Program
    {
        static void Main(string[] args)
        {
            string name = Console.ReadLine();
            int count = 0;
            double sum = 0.0;
            double average = 0.0;

            while (true)
            {
                double num = double.Parse(Console.ReadLine());
                sum = sum + num;
                count++;
                    if (count == 12)

                    {
                        average = sum / count;
                        if (average > 4 && average<= 6)
                        {

                            Console.WriteLine($"{name} graduated. Average grade: {average:f2}");
                        break;
                        }
                    else if ( average <4)
                    {
                        break;
                    }
                }
            }
        }
    }
}