#include <bits/stdc++.h>
#define MAXN 18

using namespace std;

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

int n, k;
int sol[MAXN];
bool fr[MAXN + 1];

void show() {
    for (int i = 0; i < k; i++)
        fout << sol[i] << ' ';
    fout << '\n';
}

void back(int level = 0) {
    if (level == k) {
        show();
        return;
    }

    int init = 1;
    if (level > 0)
        init = sol[level - 1];
    for (int i = init; i <= n; i++)
        if (!fr[i]) {
            fr[i] = true;
            sol[level] = i;
            back(level + 1);
            fr[i] = false;
        }
}

int main() {
    fin >> n >> k;
    back();
    return 0;
}