#include <fstream>
#include <cstdlib>

using namespace std;

const int NMAX = 20;

int N;
int v[NMAX];
bool was[NMAX];

ofstream out("permutari.out");

inline void back(int k)
{
	if(N == k - 1)
	{
		for(int i = 1; i <= N; ++i) out << v[i] << ' ';
		out << '\n';
		return;
	}
	
	for(int i = 1; i <= N; ++i)
		if(!was[i])
		{
			v[k] = i;
			was[i] = true;
			back(k + 1);
			was[i] = false;
		}
}

int main()
{
	ifstream in("permutari.in");
	
	in >> N;
	back(1);
	return EXIT_SUCCESS;
}