#include<stdio.h>
int n,k,i,j,gata,c[20];
int main()
{
freopen("combinari.in","r",stdin);
freopen("combinari.out","w",stdout);

scanf("%d%d",&n,&k);

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

while(gata==0)
     {
     i=k;
     while(i>0 && (c[i]=n-k+i))
           {
           --i;
           for(j=1;j<=k;++j)
             printf("%d ",c[j]);
           printf("\n");
           }
     if(i==0)
          gata=1;
     }
     
return 0;
}