using System;

public class Program

{

    // Purpose: This program checks for the color

    //  blue.

    // Written by: [Alex Berghorn]

    public static void Main()

    {

        Console.WriteLine("Enter a color");

        string color = Console.ReadLine();

        string blue = "blue";

        if (color.ToLower() == blue) 

        {

            Console.WriteLine("The color is blue");

        }

        else 

        {

            Console.WriteLine("The color is not blue");

        }

    }

}