#include <cstdio>

using namespace std;

int k,p,n,a[100];

void afisare()
 {
     for (int i=1;i<=p;i++) printf("%d ", a[i]);
     printf("\n");
 }

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

int main()
{
    freopen("combinari.in","r",stdin);
    freopen("combinari.out","w",stdout);
    scanf("%d %d", &n, &p);

    back(1);

    return 0;
}