#include <stdio.h>



int main(){


	int a = 9;


	int fib(int a) {
		if (a == 0)
			return 0;
		if (a == 1)
			return 1;

		return fib(a - 1) + fib (a - 2);


	}


printf ("Fibonacci-Zahl zu %d = %d\n", a, fib(a));

}