#include <fstream>
using namespace std;
ifstream fi("combinari.in");
ofstream fo("combinari.out");
int a[20],n,k,i;

void afisare (int i)
{
for (int j=1;j<=i;j++) fo<<a[j]<<" ";
fo<<'\n';
}

int bt(int i)
{
  for (int val=a[i-1]+1;val<=n;val++)

  { a[i]=val;
    if (i==k) afisare(i);
            else bt(i+1);
  }
}

int main()
{
fi>>n>>k;
bt(1);

 return 0;
}