#include<fstream.h>
int i,j,k;
void main ()
{
ifstream in("combinari.in");
ofstream out("combinari.out");
in>>n;
in>>k;
for(i=1;i<=n;i++)
 {for(j=2;j<=n;j++)
  for(k=3;k<=n;k++)
  if (k>j&&j>i) out<<i<<" "<<j<<" "<<k;}
}