Graduation

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

namespace DomashnoGraduation
{
    class Program
    {
        static void Main(string[] args)
        {
            int numberOfInputs = 1;
            double gradeAcumulate = 0.00;

            string name = Console.ReadLine();

            while (numberOfInputs <= 12)
            {
                double grade = double.Parse(Console.ReadLine());
                if (grade >= 4.00)
                {
                    gradeAcumulate += grade;
                    numberOfInputs++;
                }
            }

            double averageGrade = 1.00 * gradeAcumulate / (numberOfInputs-1);
            Console.WriteLine($"{name} graduated. Average grade: {averageGrade:f2}");
        }
    }
}