#include <fstream>
#include <vector>
#define INFILE "combinari.in"
#define OUTFILE "combinari.out"
using namespace std;

ifstream fin(INFILE);
ofstream fout(OUTFILE);
int n,k;
void back(vector<int> &v, int n, int k)
{
	if (v.size() == k) {
		for (vector<int>::iterator it = v.begin(); it != v.end(); ++it)
			fout << *it << " ";
		fout << endl;
		return;
	}
	int first = v.size() > 0?v[v.size()-1] + 1:1;
	int last = k - v.size() - 1 + n;
	for(int i = first; i<=last; ++i)
	{		
		v.push_back(i);
		back(v, n, k);
		v.pop_back();
		
	}
	
}

int main()
{
	
	fin >> n >> k;
	vector<int> v;
	back(v, n, k);
	fin.close();
	fout.close();
	return 0;
}