#include<cstdio>
using namespace std;
int n,k,v[20];
void bkt(int x){
	
	if(x==k){
		for(int i=1;i<=k;++i)printf("%d ",v[i]);
		printf("\n");
		return;
	}
	for(int i=v[x]+1;i<=n;++i){
		v[x+1]=i;
		bkt(x+1);
	}
}
int main(){
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d%d",&n,&k);
	bkt(0);
	
	return 0;
	
}