#include <bits/stdc++.h>

using namespace std;

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

int v[20];

void combinationsGeneration(int n, int k, int s, int idx) {

    if (idx > k && s > k) {
        for (int i = 1; i <= k; i ++) {
            fout << v[i] << " ";
        }
        fout << "\n";
        return;
    }

    for (int i = s; i <= n; i ++) {
        v[idx] = i;
        combinationsGeneration(n, k, i + 1, idx + 1);
    }
}

int main()
{
    int n, k;
    fin >> n >> k;
    combinationsGeneration(n, k, 1, 1);
    return 0;
}