#include<fstream>

using namespace std;

ifstream cin("combinari.in");
ofstream cout("combinari.out");
int n,k,comb,a[40];
void afisez()
{
    for (int i=1; i<=comb; ++i) cout<<a[i]<<" ";
    cout<<"\n";
}

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


}
int main()
{
    cin>>n>>comb;
    back(1);
    return 0;
}