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

namespace ConsoleApp3
{
    class Student
    {
        // уровень 2 задание 1
        public double Sred;
        public int[] Marks;
        public string Name;
        public Student(double Sred, int[] Marks, string Name)
        {
            this.Sred = Sred;
            this.Marks = Marks;
            this.Name = Name;
        }
        public static double CalculateAverage(int[] Marks, double Sred)
        {
            foreach (int mark in Marks)
            {
                Sred += mark;
            }
            Sred /= Marks.Length;
            return Sred;
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            string path = @"G:\surnames.txt";
            StreamReader str1 = new StreamReader(path, Encoding.GetEncoding(1251));


            Student[] students = new Student[5];
            Student st1 = new Student(0, new int[] { 2,3,4,5 },str1.ReadLine());
            st1.Sred = Student.CalculateAverage(st1.Marks, st1.Sred);
            students[0] = st1;
            Student st2 = new Student(0, new int[] { 3,5,5,5 }, str1.ReadLine());
            st2.Sred = Student.CalculateAverage(st2.Marks, st2.Sred);
            students[1] = st2;
            Student st3 = new Student(0, new int[] {  4,5,4,4}, str1.ReadLine());
            st3.Sred = Student.CalculateAverage(st3.Marks, st3.Sred);
            students[2] = st3;
            Student st4 = new Student(0, new int[] {  3,2,4,5}, str1.ReadLine());
            st4.Sred = Student.CalculateAverage(st4.Marks, st4.Sred);
            students[3] = st4;
            Student st5 = new Student(0, new int[] {  2,2,5,4}, str1.ReadLine());
            st5.Sred = Student.CalculateAverage(st5.Marks, st5.Sred);
            students[4] = st5;

            Console.WriteLine("\n  Фамилия     \t Средний балл \n ");

            foreach (Student student in students)
            {
                Console.Write("{0,10} \t {1,4}   \t   ", student.Name, student.Sred);
                foreach (uint mark in student.Marks)
                    Console.Write($" {mark}");
                Console.WriteLine();
            }
            Console.WriteLine("\n  Фамилия    \t Средний балл \n");
            foreach (Student student in students)
            {
                if (student.Sred >= 4)
                    Console.WriteLine("{0,10} \t {1,4}", student.Name, student.Sred);
            }
            Console.Read();
        }
    }
}