#include <stdio.h>

int n,k,v[128],x[16],N,K;

void back()
{
    ++k;    
	if (k>K) 
    { 
          for(char j=1;j<k;++j) 
             printf("%d ", x[j]); 
          printf("\n"); 
    } else
    for(x[k]=x[k-1]+1;x[k]<=N;++x[k]) back();
	--k;
}



int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);

	scanf("%d%d", &N,&K);

	back();

	return 0;
}