using System;

​

public class Program 

{

    class Person

    {

        string name;

        int age;

        public const int АgeOfMajority = 18;

        public String Name

        {

            get

            {

                return name;

            }

​

            set

            {

                name = value.Length > 5 ? value : name;

            }

        }

​

        public int Age 

        {

            get 

            {

                return age;

            }

​

            set 

            {

                age = value >= 0 && value <= 100 ? value : age;

            }

        }

​

        public Person()

        {

            name = "Черняков Антон Сергеевич";

            age = 17;

        }

​

        public Person(string name, int age)

        {

            this.name = name;

            this.age = age;

        }

​

        public void View()

        {

            Console.WriteLine("ФИО: {0}\nВозраст: {1}",name, age);

        }

​

        public int YearsToAdulthood()

        {

            return age >= АgeOfMajority ? 0 : АgeOfMajority - age;

        }

    }

    public static void Main()

    {

        //Console.ForegroundColor = ConsoleColor.Cyan;

​

        DateTime dt = new DateTime(2020, 4, 1);

        String str = new String(new char[]{'П', 'К', 'С', '-', '8', '1'});

​

        Console.WriteLine("Площадь круга при радиусе = 13: {0:F3}", Math.PI * 13);

​

        Person p = new Person();

        p.Name = "Черняков Антон Сергеевич";

        p.Age = 17;

​

        p.View();

        Console.WriteLine("До совершенолетия осталось: {0}", p.YearsToAdulthood());

​

        Person p2 = new Person("Даня", 18);

​

        dt = DateTime.Now;

        int year = dt.Year;

    }

}