using System;

using System.Web.Mvc;

using System.Collections.Generic;

​

namespace HelloWorldMvcApp

{

    public class HomeController : Controller

    {

        public ActionResult Index()

        {

        return View();

        }

    public ActionResult Febo(){

        return View();

    }

        [HttpPost]

     public ActionResult Febo(string param)

     {

        int n = 0;

        int clickcount = 0;

        //Fn = (Fn-1)+(Fn-2); febonnacci

        // clickcount = n / febo's index;

        if(param == "-") {

        clickcount--;

        }

        clickcount++;

        n=(clickcount-1)+(clickcount-2);

        ViewBag.Result = n;

        return View(ViewBag.Result);

     }

​

​

​

    }

}