#include<fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");

int x[20],n,c;

bool b[20];

void back(int k){
	
	if(k>c){
		for(int i=1;i<=c;i++)
			fout<<x[i]<<" ";
		fout<<"\n";
	}
	for(int i=1;i<=n;i++)
		if(!b[i] && x[k-1]<i){
			x[k]=i;
			b[i]=1;
			back(k+1);
			b[i]=0;
		}
}

int main (){
	fin>>n>>c;
	back(1);
	return 0;
}