#include <fstream>
using namespace std;
int n,k;
int st[20];
fstream fin ("combinari.in",ios::in);
fstream fout("combinari.out",ios::out);

void citire(void){
	fin>>n>>k;
}

void print_it(){
	for (int i=1;i<=k;i++)
		fout<<st[i]<<" ";
		fout<<endl;
}

void bt(int p){

	if (p==k+1){
		print_it();
	}
	else{
		for (int i=st[p-1]+1;i<=n;i++){
			st[p]=i;
			bt(p+1);
		}

	}
}




int main(){
	citire();
	bt(1);
}