#include <fstream>
#define fisier "combinari"
std::ifstream in(fisier ".in");
std::ofstream out(fisier ".out");
int n, k;
#include <vector>
std::vector<int> S;
void back()
{
    if (k)
        for (int i = S.size()? S.back()+1: 0; i < n; i++)
        {
            S.push_back(i); k--;
            back();
            S.pop_back(); k++;
        }
    else
    {
        for (int i: S)
            out << i + 1 << ' ';
        out << '\n';
    }
}
int main()
{
    in >> n >> k;
    back();
}