백준 10870,10872

#include <iostream>
using namespace std;
int fibo(int n) {
	if (n == 0) return 0;
	if (n == 1)return 1;
	return fibo(n - 1) + fibo(n - 2);
}
int main() {
	int n;
	cin >> n;
	cout << fibo(n);
}

#include <iostream>
using namespace std;
int factorial(int n) {
	if (n == 1||n==0) return 1;
	return n * factorial(n - 1);
}
int main() {
	int n;
	cin >> n;
	cout << factorial(n);
}