#include <fstream>
#include <iostream>
#include <cstring>
#include <utility>
#include <queue>
#include <climits>
#include <cctype>

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");

int s[20],n,k;;
void combinari(int l){
	int i;

	if(l==k){
		for(i=1;i<=k;i++)
			fout<<s[i]<<" ";
		fout<<"\n";
	}

	else{
		for(i=s[l]+1;i<=n;i++){
			s[l+1]=i;
			combinari(l+1);
		}
	}
}

int main(){
	fin>>n>>k;

	combinari(0);

	return 0;
}