#include <bits/stdc++.h>
#define ll long long
using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k, v[20], reached[20];

void gen(int size, int start) {
    if (size == k + 1) {
        for (int i = 1; i <= k; i++)
            fout << v[i] << " ";
        fout << '\n';
        return;
    }

    for (int i = start; i <= n; i++) 
        v[size] = i, gen(size + 1, i + 1);
}

int main() {
    fin >> n >> k;

    gen(1, 1);
    return 0;
}