//ODULIO, JOSEPH PAUL G.

//AGULTO, JEAN DIETHERSON

//CCP - 1103 - ITDC

//FIBONACCI FACTORIAL SUM

using System;           

public class Program

{

    public static int fibonacciNumber(int numeric)

    {

        int fibonacciDigit = numeric;

        int variableA = 0;

        int variableB = 1;

        for (int i = 0; i < numeric; i++)

        {

            int temporaryNumber = variableA;

            variableA = variableB;

            variableB = temporaryNumber + variableB;

        }

        return variableA;

    }

    public static int factorialNumber(int numeric) {

        int factorialDigits = 1;

        for (int i = 1; i <= numeric; i++)

        {

            factorialDigits = factorialDigits * i;

        }

        return factorialDigits;

    }

    public static void Main(string [] args)

    {

        string inputNumber;

        int number;

        int fibonacciFactorial=0;

        Console.WriteLine("Fibonacci Factorial Sum");

        Console.WriteLine("Enter a Number: ");

        inputNumber = Console.ReadLine();

        if(Int32.TryParse(inputNumber, out number) == true)

        {

            if(number<1)

            {

                Console.WriteLine("Zero or Negative Numbers is not Allowed");

            }

            else if(number>=1&&number<=6)

            {

                for (int i = 1; i <=number; i++)

                {

                    fibonacciFactorial = fibonacciFactorial+ factorialNumber(fibonacciNumber(i));

                }        

                Console.Write("The fibonacci factorial is {0:#,0}",fibonacciFactorial);

            }

            else

            {

                Console.WriteLine("The Input Value is exceeded. Please Enter only from 1-6.");

            }

        }

        else

        {

            Console.WriteLine("Invalid Input. Please Enter a Desired Value.");

        }

    }

}