#include <fstream>
using namespace std;

ifstream in{"combinari.in"};
ofstream out{"combinari.out"};

int n, k;
int x[20];
bool fol[20];

void print() {
    for (int i = 1; i <= k; ++i)
        out << x[i] << ' ';
    out << '\n';
}

void backTrack(int l) {
    for (int i = x[l - 1] + 1; i <= n; ++i) {
        x[l] = i;
        if (!fol[i]) {
            fol[i] = true;

            if (l == k)
                print();
            else
                backTrack(l + 1);

            fol[i] = false;
        }
    }
}

int main()
{
    in >> n >> k;
    backTrack(1);
}