using System;

public class Conversion

    {

        public static void Main(string[] args)

        {

            double inputUsDollar;

            double philippinePeso;

            double singaporeDollar;

            double uaeDirham;

            int option;

​

            Console.WriteLine("Conversion.");

            Console.Write("Enter US Dollar: ");

            inputUsDollar = double.Parse(Console.ReadLine());

            if (inputUsDollar <= 0)

            {

                Console.WriteLine("Zero or negative is not allowed.");

            }

            else

            {

                Console.WriteLine("Select the Conversion.");

                Console.WriteLine("[1] Philippine Peso - 53.57");

                Console.WriteLine("[2] Singapore Dollar - 1.37");

                Console.WriteLine("[3] UAE Dirham - 3.67");

                Console.Write("Enter your option: ");

                option = Int32.Parse(Console.ReadLine());

                if (option == 1)

                {

                    philippinePeso = inputUsDollar * 53.57;

                    Console.WriteLine("The equivalent value is " + String.Format("{0:#,0.00}", philippinePeso));

                }

                else if (option == 2)

                {

                    singaporeDollar = inputUsDollar * 1.37;

                    Console.WriteLine("The equivalent value is " + String.Format("{0:#,0.00}",singaporeDollar));

                }

                else if (option == 3)

                {

                    uaeDirham = inputUsDollar * 3.67;

                    Console.WriteLine("The equivalent value is " + String.Format("{0:#,0.00}", uaeDirham));

                }

                else

                {

                    Console.WriteLine("The input option is not allowed.");

                }

            }

        }

    }