#include <stdio.h>
#include <fstream.h>

int N,K;
int x[100];

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


void afis()
{
	for (int i = 1; i<=K; i++)
		fout<<x[i]<<" ";
	fout<<"\n";
}

void back(int k )
{
	if ( k == K +1)
		afis();
	else
	{
		for (int i = x[k-1]+1; i <= N; i++)
		{
			x[k] = i;
			back(k+1);
		}
	}
}

int main()
{
	fin>>N>>K;

	back(1);

	return 0;
}