#include <stdio.h>

int a[20],n,k;

void back(int x)
{
	if (x>k)
	{
		for (int i=1; i<=k; ++i) printf("%d ",a[i]);
		printf("\n");
		return;
	}
	for (int i=a[x-1]+1; i<=n; ++i)
	{
		a[x]=i;
		back(x+1);
		a[x]=0;
	}
}

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