#include <cstdio>
#include <iostream>
using namespace std;

int v[20],n,k;

void back(int poz)
{
	int i;
	if(poz>k)
	{
		for(i=1;i<=k;i++) printf("%d ",v[i]);
		printf("\n");
		return;
	}
	for(i=v[poz-1]+1;i<=n;i++)
	{	
		v[poz]=i;
		back(poz+1);
	}
	return;
}


int main()
{

	freopen("combinari.in","r", stdin);
	scanf("%d %d",&n,&k);
	freopen("combinari.out","w", stdout);
	back(1);
	fclose(stdin);
	fclose(stdout);
	return 0;
}