#include<stdio.h>

int st[20],n,uz[20];

void back(int k)
{
	if(k==n)
	{	for(int i=0;i<n;i++) printf("%d ",st[i]);
		printf("\n");
	} else
		for(int i=1;i<=n;i++)
			if(!uz[i])
			{	st[k]=i;uz[i]=1;
				back(k+1);
				uz[i]=0;
			}
}

int main()
{
	freopen("permutari.in","r",stdin);
	freopen("permutari.out","w",stdout);
	scanf("%d",&n);
	back(0);
	return 0;
}