#include<fstream>
#include<string>
#include<iostream>
using namespace std;
ifstream f("submultimi.in");
ofstream g("submultimi.out");
int n;
int d[20];
void back(int k,short ok[20],int last){
	for(int j=1;j<k;j++){
		g<<d[j]<<" ";
	}
	if(k!=1)
	g<<"\n";
	int i;
	for(i=last;i<=n;i++){
		if(ok[i]==0){
			d[k]=i;
			ok[i]=1;
			back(k+1,ok,i+1);
			ok[i]=0;
		}
	}
	
}
short ok[20];
int main(){
	
	f>>n;
	back(1,ok,1);
	return 0;
}