#include <iostream>
#include <fstream>

using namespace std;

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

int n, sol[100], p;
bool app[100];

void display(int k)
{
	for(int i = 1; i <= k; ++i)
	{
		fout << sol[i] << " ";
	}
	fout << endl;
}

void bkt(int k)
{
	if(k == n+1)
	{
		return;
	}
	else
	{
		for(int i = 1; i <= n; ++i)
		{
			if(!app[i] && (k == 1 || i > sol[k-1]))
			{
				sol[k] = i;
				app[i] = true;
				display(k);
				bkt(k+1);
				app[i] = false;
			}
		}

	}
}


int main(void)
{
	fin >> n;
	bkt(1);
	return 0;
}