using System;

​

public class Program

{

    class Student

    {

        public string Name;

        public string  ID;

        public double BestGrade;

​

        public double CalculateAverage(int[] grades)

        {

            int sum = 0;

​

            for (int i = 0; i < grades.Length; i++)

            {

                sum = sum + grades[i];

            }

​

            return (double)sum / grades.Length;

        }

    }

​

    public static void Main()

    {

        Student[] students = new Student[3];

​

        for (int i = 0; i < 3; i++)

        {

            students[i] = new Student();

            Console.WriteLine("הזן שם תלמיד:");

            students[i].Name = Console.ReadLine();

               students[i] = new Student();

            Console.WriteLine("הזן מספר תעודת זהות:");

            students[i].ID = Console.ReadLine();

​

​

            int[] myGrades = new int[3];

​

            for (int g = 0; g < 3; g++)

            {

                Console.WriteLine("הזן ציון מבחן מספר " + (g + 1) + ":");

                myGrades[g] = int.Parse(Console.ReadLine());

            }

​

            double average = students[i].CalculateAverage(myGrades);

            Console.WriteLine("הממוצע של תלמיד " + students[i].Name + " הוא: " + average);

        }

    }

}

​