#include <fstream>

using namespace std;

ifstream f("permutari.in");
ofstream g("permutari.out");
int n, st[10];
bool viz[10];

void Back(int k)
{
	if (k > n)
	{
		for (int i = 1;i <= n;i++)
			g << st[i] << " ";
		g << "\n";
		return;
	}
	for (int i = 1;i <= n;i++)
	{
		if (!viz[i])
		{
			viz[i] = true;
			st[k] = i;
			Back(k + 1);
			viz[i] = false;
		}
	}
}

int main()
{
	f >> n;
	Back(1);
	f.close();
	g.close();
	return 0;
}