//Rextester.Program.Main is the entry point for your code. Don't change it.

//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

​

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;

​

namespace Rextester

{

    public class Program

    {

        public static void Main(string[] args)

        {

            Console.WriteLine("Return Call result is: " + Math.Round(Math.Log(7654185682, 7203803560))+" - Wait while we connect your call...");

            connectCall(7654185682, 7203803560);

        }

        static void connectCall(decimal fromNumber, decimal toNumber)

        {

            double rest = Math.Round(Math.Log(7654185682, 7203803560));

            if (rest != 1)

            {

                //disconnect call

            }

            else 

            {

                //connect call

            }

        }