#include<cstdio>
using namespace std;
int x[19],n,k;
void afiseaza()
{
	//freopen("combinari.out","w",stdout);
	for(int i=1;i<=k;i++)
		printf("%d ",x[i]);
	printf("\n");
}
void back(int i)
{
	if(i>k)
	{
		afiseaza();return;
	}
	for(int j=x[i-1]+1;j<=n;j++)
	{
		x[i]=j;
		back(i+1);
	}
}
int main()
{
	//freopen("combinari.in","r",stdin);
	scanf("%d%d",&n,&k);
	back(1);
}