#include <stdio.h>
#define NMax 20
const char IN[]="combinari.in",OUT[]="combinari.out";

int N,K;
int v[NMax];

void bkt(int x,int k){
	if (k==0){
		for (int i=1;i<=x;++i) if(v[i]) printf("%d ",i); printf("\n");
		return;
	}
	if (x>=N+1) return;
	v[x]=true;
	bkt(x+1,k-1);
	v[x]=false;
	bkt(x+1,k);
}

int main()
{
	freopen(IN,"r",stdin);
	scanf("%d%d",&N,&K);
	fclose(stdin);
	freopen(OUT,"w",stdout);
	bkt(1,K);
	fclose(stdout);
	return 0;
}