using System;

public class Program

{

    public class Student

    {

        public string studentID { get; set; }

        public string firstName { get; set; }

        public string lastName { get; set; }

        public float programmingMark { get; set; }

        public float databaseMark { get; set; }

​

        public float averMark(float markOne, float markTwo)

        {

            return (float)((markOne + markTwo) / 2);

​

        }

​

​

    }

​

        public static void Main(string[] args)

        {

            var student = new Student();

            student.studentID = "CS2343";

            student.programmingMark = 8f;

            student.databaseMark = 9.5f;

​

            Console.WriteLine("Hello " + student.studentID + " result: " +student.averMark(student.programmingMark, student.databaseMark));

        }

    }

​