#include <iostream>
#include <fstream>
using namespace std;

int st[100],n,k,a[100], nr[100];
    ifstream in ("combinari.in");
    ofstream out ("combinari.out");
    void afisare (int p)
{ int i ;
for (i=1;i<=p;i++)
out<<st[i]<<" ";
out<<"\n"; }
void back (int p)

{ int pval;
for(pval=st[p-1]+1;pval<=n;pval++)
{ st[p]=pval;
if (p==k) afisare (p);
else back (p+1); }}
int main ()
{   int i;
in>>n;
in>>k;
back (1);
in.close();
out.close();
return 0;}