#include <cstdio>

int N,K,v[18];

void printData()
{
 for(int i = 0; i<K ; printf("%d ",v[i++]));
 printf("\n");
}

void comb(int t)
{
 if(t==K) printData();
  else
   for(int i = !t?1:v[t - 1] + 1; i <= N - K + t + 1; ++i)
   {
     v[t] = i;
     comb(t+1);
   }
}

int main()
{
 freopen("combinari.in","r",stdin);
 freopen("combinari.out","w",stdout);
 scanf("%d %d",&N,&K);
 comb(0);
 return 0;
}