#include <stdio.h>
#define FIN "combinari.in"
#define FOUT "combinari.out"
int s[19],n,k;

void print()
{int i;
 for(i=1;i<=k;i++)
     printf("%d ",s[i]);
 printf("\n");
}

void back(int p)
{
 int i;
 for(i=1;i<=n-k+1;i++)
 {
   s[p]=s[p-1]+i;
   if(s[p]>n) break;
   if(p==k) print();
   else back(p+1);
 }

}

int main()
{
 freopen(FIN,"rt",stdin);
 freopen(FOUT,"wt",stdout);
 scanf("%d%d",&n,&k);
 back(1);

 return 0;
}