#include <iostream>
#include <fstream>
using namespace std;

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

const int MAX_LENGTH = 18;
int n, k;
int v[MAX_LENGTH + 1];

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

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