using namespace std;
#include<cstdio>
#define MAX 25
int n,k,v[MAX];
void afisare(int v[], int n)
{
	for(int i=1;i<=n;i++)
		printf("%d ",v[i]);
	printf("\n");
}
void back(int w, int step)
{
	if(w<=n-k+step)
		if(step<k)
		{
			v[step]=w;
			for(int i=1;i<=n-k+step+1-w;i++)
				back(w+i,step+1);
		}
		else
		{
			v[step]=w;
			afisare(v,step);
		}
}
int main()
{
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d %d",&n,&k);
	back(0,0);
	return 0;
}