using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Programming Language");

        Console.WriteLine("\tC#\n");

        Console.WriteLine("It Has 4 Pillars\n");

        Console.WriteLine("1.\t Astraction");

        Console.WriteLine("2.\t Polymorphism");

        Console.WriteLine("3.\t Inheritance");

        Console.WriteLine("4.\t Encapsulation");

    }

}