#include<fstream>
using namespace std;
ifstream cin("permutari.in");
ofstream cout("permutari.out");

int st[100],n;

bool valid(int p){
	int ok=1;
	for(int i=1;i<p;++i)
	if(st[i]==st[p]) ok=0;
	return ok;
}
void afisare(){
	for(int i=1;i<=n;++i)
		cout<<st[i]<<" ";
	cout<<endl;
}
void back(int p){
	int pval;
	for(pval=1;pval<=n;++pval){
		st[p]=pval;
		if( valid(p) ) if(p==n) afisare();
					else back(p+1);
	}
}
int main()
{
	cin>>n;
	back(1);
	
	return 0;
}