#include <iostream>
#include <fstream>
#include <bitset>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, kMax, v[20];
bitset<20> used;

void genComb(int k, int v[], bitset<20> &used) {
    if (k == kMax + 1) {
        for (int i = 1; i <= kMax; i++)
            fout << v[i] << ' ';
        fout << '\n';
        return;
    }

    for (int i = v[k - 1] + 1; i <= n; i++)
        if (!used[i]) {
            used[i] = true;
            v[k] = i;
            genComb(k + 1, v, used);
            used[i] = false;
        }
}

int main() {
    fin >> n >> kMax;
    genComb(1, v, used);
    return 0;
}