1.i am aline, 2.i ama circle, 3.i am a square.

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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("I am a line");
            Console.WriteLine("I am a circle");
            Console.WriteLine("I am a square");
            Console.ReadLine();
        }
    }
}