#include <fstream>

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");

int N, K;
int x[19];

void write() {
    for (int i = 1; i <= K; ++i)
        fout << x[i] << ' ';
    fout << '\n';
}

void bk(int k) {
    if (k == K + 1) {
        write();
        return;
    }

    for (int i = x[k - 1] + 1; i <= N; ++i) {
        x[k] = i;
        bk(k + 1);
    }
}

int main()
{
    fin >> N >> K;
    bk(1);
    return 0;
}