#include <fstream>

using namespace std;
ifstream in("combinari.in");
ofstream out("combinari.out");
int sol[20];
int n, k;

void scrie()
{
    for(int i = 1; i <=k; i++)
        out << sol[i]<< " ";
    out <<"\n";
}

void bkt(int p)
{
    if(p == k+1)
        scrie();
    else
        for(int i = sol[p-1] + 1; i <= n-k+p; i++)
        {
            sol[p] = i;
            bkt(p+1);
        }

}

int main()
{
    in >> n >>k;
    bkt(1);

    return 0;
}