using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(" П.І.Б. учня               | Вік | Оцінка     |    ");

        Random rnd = new Random();

        int num = rnd.Next();

        var Vasia = new Student()

        {

            FirstName = "Василь",

            LastName = "Петрушевський",

            Age = 14,

            Rate = 66

        };

        Random rnd1 = new Random();

        int num1 = rnd1.Next();

        var Ana = new Student()

        {

            FirstName = "Аня",

            LastName = "Денисенко       ",

            Age = 13,

            Rate = 1

        };

        var Stepan = new Student()

        {

            FirstName = "Степан",

            LastName = "Бандера      ",

            Age = 15,

            Rate = 43

        };

        Student[] arr = new Student[] { Vasia, Ana, Stepan };

        foreach (var item in arr)

        {

                string strRate;

                if(item.Rate <= 54)

                {

                    strRate = "Незадовільно";

                }

                else

                {

                    if(item.Rate >= 55 && item.Rate <= 74)

                    {

                        strRate = "Задовільно";

                    }

                    else

                    {

                        if(item.Rate >=75 && item.Rate <= 84)

                        {

                            strRate = "Добре";

                        }

                        else

                        {

                            if(item.Rate >=85 && item.Rate <= 100)

                            {

                                strRate = "Відмінно";

                            }

                            else

                            {

                                continue;

                            }

                        }

                    }

                 }

            Console.WriteLine(" {0} {1}      |  {2} |      {3}      | " , item.FirstName , item.LastName , item.Age , strRate);

        }

    }

}

public class Student

{

    public string FirstName { get ; set ; }

    public string LastName { get ; set ; }

    public int Age { get ; set ; }

    public int Rate { get ; set ; }

}