#include<stdio.h>
int st[20],n,K;
void back(int k)
{
   int p;
   for(p=st[k-1]+1;p<=n;p++)
   {
      st[k]=p;
      if(k==K)
      {
         for(int i=1;i<=K;i++)
	    printf("%d ",st[i]);
	 printf("\n");
      }
      back(k+1);
   }
}
int main()
{
   freopen("combinari.in","r",stdin);
   freopen("combinari.out","w",stdout);
   scanf("%d%d",&n,&K);
   back(1);
   return 0;
}