#include<stdio.h>
#include<vector>
using namespace std;
int n;
vector <bool> apar(10);
char sol[20];
void afisare(){
	printf("%s\n",sol);
}
void bkt(int k, int poz){
	if(k>n){
		sol[poz]='\0';
		afisare();
		return;
	}
	for(int i=1;i<=n;++i)
		if(apar[i]==0){
			sol[poz]=i+'0';
			sol[poz+1]=' ';
			apar[i]=1;
			bkt(k+1,poz+2);
			apar[i]=0;
		}
}
int main(){
	freopen("permutari.in","r",stdin);
	freopen("permutari.out","w",stdout);
	scanf("%d",&n);
	bkt(1,0);
	return 0;
}