#include <iostream>

using namespace std;

int factorial(int n)
{
	//base case
	if (n <= 1)
		return 1;

	//recursive step
	return(n * factorial(n - 1));
}

int fibonacci(int n)
{
	//base case
	if (n == 0)
		return 0;

	//second base case
	if (n == 1)
		return 1;

	//recursive step
	return (fibonacci(n - 1) + fibonacci(n - 2));
}

int main(void)
{
	int n;
	cout << "Enter a value between 0 and 19: ";
	cin >> n;
	if (n < 20 && -1 < n)
	{
		cout << endl;
		//we call  fibanacci in cout with value 10
		cout << "Value of fibonacci(" << n << ") is: " << fibonacci(n) << endl;

		//factorial value of 5
		cout << "Value of factorial(" << n << ") is: " << factorial(n) << endl;
	}
	else
		cout << "Value is will cause problems" << endl;

	return 0;
}