using System;

namespace Activity_No._4._4._1_6{

    public class Program    {

       public static void Main(string[] args)        {

            Console.Write("Input WaveLength: ");

            decimal wave = Convert.ToDecimal(Console.ReadLine());

            if (wave >   1/10)

            {    Console.WriteLine("Radio Waves");}

            else if (wave  > 1/1000  &&  wave   <= 1/10)

            {    Console.WriteLine("Micro Waves");}

            else if (wave   >    1/70000000 && wave   <= 1/1000)

            {    Console.WriteLine("Infrared");   }

            else if (wave   > 1/40000000 && wave   <= 1/70000000)

            {    Console.WriteLine("Visible Light");}

            else if (wave   > 1/100000000  && wave   <= 1/40000000)

            {    Console.WriteLine("Ultraviolet");}

            else if (wave   > 1/100000000000 && wave   <= 1/100000000)

            {    Console.WriteLine("X-ray");      }

            else if (wave   < 1/100000000000)

            {    Console.WriteLine("Gamma rays"); }

            Console.ReadLine();

        }

    }

}

​