#include <stdio.h>

FILE *f,*g;
using namespace std;

int c,n,k,x[1000];
void afis(int k)
{
 int i;
 for (i=1;i<=k;i++)
 fprintf(g,"%d ",x[i]);
 fprintf(g,"\n");

}


void back(int k)
{
 int i;
 for (i=x[k-1]+1;i<=n;i++)
 {
  x[k]=i;
  if (k==c) afis(k);
  else back(k+1);
 }
}



int main()
{

    f=fopen("combinari.in","r");
    g=fopen("combinari.out","w");

fscanf(f,"%d %d",&n,&c);

back(1);




return 0;
}