#include <iostream>
#include <fstream>
#define NMAX 19
using namespace std;

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

int sol[NMAX], n, k, folosit[NMAX];

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

void back(unsigned char pos) {
    if (pos == k) {
        printSol();
        return;
    }

    for (int i = 1; i <= n; i++) {
        if (!folosit[i] && pos == 0 sol[pos-1] < i) {
            folosit[i] = 1;
            sol[pos] = i;
            back(pos + 1);
            folosit[i] = 0;
        }
    }
}

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