#include<stdio.h>
int n,a[100];
void afisare()
{
	for(int i=1;i<=n;++i)
		printf("%d ",a[i]);
	printf("\n");
}
int val(int x)
{
	int i;
	for (i=1;i<x;++i)
		if (a[i]==a[x])
			return 0;
	return 1;
}
void back(int x)
{
	int i;
	if (x==n+1)
		afisare();
	for (i=1;i<=n;++i)
	{
		a[x]=i;
		if (val(x))
			back(x+1);
	}
//	printf("\n");
}
int main()
{
//	int n;
	freopen("permutari.in","r",stdin);
	freopen("permutari.out","w",stdout);
	scanf("%d",&n);
	back(1);
//        printf("%d",n);
	return 0;
}