#include <fstream>

using namespace std;
int i,j,n,k,t[100];
   ifstream fin("combinari.in");
    ofstream fout("combinari.out");

void bk(int l)
{
    if (l==k)
    {
        for (int i=1;i<=k;i++)
            fout<<t[i]<<" ";
            fout<<"\n";
            return;
    }
    for (int i=t[l]+1;i<=n;i++)
    {
        t[l+1]=i;
        bk(l+1);
    }
}
int main()
{

    fin>>n>>k;
    bk(0);
    return 0;
}