static void Main(string[] args)
        {
            //////////////// Day 1 ////////////
            Average             av = new Average();
            DisplayNumber       dn = new DisplayNumber();
            MultiplicationTable mt = new MultiplicationTable();
            StringSwap          ss = new StringSwap();
            Temperature         tt = new Temperature();
            LongWord            lw = new LongWord();

            //av.FindAverage();
            //dn.GetNumber();
            //mt.FindMultiplication();
            //ss.SwapString();
            //lw.FindLongWord();
            //tt.TemperatureConversion();

            ///////////Day 2///////////////
            CubeNumber cn = new CubeNumber();
            Fibonacci  fs = new Fibonacci();

            //cn.FindCubic();
            //fs.DisplayFibonacci();

            fs.DisplayFibonacciByRecursion();
        }