#include <iostream>
using namespace std;

int fib(int n){
	if(n <= 1){
		return n;
	}
	return fib(n-1) + fib(n-2);
}

int main(){
	int n;
	cout<<"N = ";
	cin>>n;

	for(int i=0; i<n; i++){
		cout<<fib(i)<<", ";
	}
	cout<<"\b\b  "<<endl;

	return 0;
}