#include<fstream>
using namespace std;
int n;
int sol[9],uz[9];
ofstream fout("permutari.out");
void back(int k)
{
	if(k==n+1)
	{
		for(int i=1;i<=n;++i)
			fout<<sol[i]<<" ";
		fout<<"\n";
	}
	else
		for(int i=1;i<=n;++i)
			if(uz[i]==0)
			{
				sol[k]=i;
				uz[i]=1;
				back(k+1);
				uz[i]=0;
			}
}
int main()
{
	ifstream fin("permutari.in");
	fin>>n;
	back(1);
}