#include<stdio.h>

int n,k,st[27];

void bkt(int l)
 {
 int i;
	if(l==k)
		{
			for(i=1;i<=k;i++)
				printf("%d ",st[i]);
			printf("\n");
		}
	else
		for(i=st[l]+1;i<=n;i++)
		{
			st[l+1]=i;
			bkt(l+1);
		}
 }
 int main()
  {
	freopen("combinari.in","r",stdin);
	freopen("combinari.out","w",stdout);
	scanf("%d %d",&n,&k);
	bkt(0);
  return 0;
  }