#include<stdio.h>
int n;
int main(void)
{
freopen("permutari.in","r",stdin);
freopen ("permutari.out","w",stdout);
scanf("%d",&n);
for(int i=1;i<=n;i++)
	for(int j=1;j<=n;j++)
		for(int k=1;k<=n;k++)
			if(i==j==k ||i==j||i==k||j==k)
				continue;
			else
				printf("%d %d %d\n",i,j,k);


return 0;
}