#include <fstream>
using namespace std;
ifstream f ("permutari.in");
ofstream g ("permutari.out");
short int n, flag[100], s[100];
void back(int k)
{
	int i;
	if (k>n) 
	{
		for (i=1; i<=n; ++i)
	{
		g<<s[i]<<" ";
	}
	g<<endl;
	}
	for (i=1; i<=n; ++i)
	{
		if (flag[i]==0)
		{
			flag [i]=1;
			s[k]=i;
			back (k+1);
			flag [i]=0;
		}
		
	}
}
int main()
{
	f>>n;
	back(1);
	return 0;
}