#include <fstream>

using namespace std;

ifstream in("submultimi.in");
ofstream out("submultimi.out");

int n,sol[20];

void bkt(int x,int nr){
	if(nr==n+1){
		return;
	}
	int i;
	for(i=1;i<=nr;i++){
		out<<sol[i]<<" ";
	}
	if(nr!=0)
		out<<"\n";
	for(i=x+1;i<=n;i++){
		sol[nr+1]=i;
		bkt(i,nr+1);
	}
}

int main(){
	in>>n;
	bkt(0,0);
	return 0;
}