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

ifstream f("combinari.in");
ofstream g("combinari.out");

int st[NMax], n, p;
bool fol[NMax];

void afisare()
{
    for(int i = 1; i <= p; ++i)
        g << st[i] << " ";
    g << '\n';
}

void back(int k)
{
    for(int i = st[k - 1] + 1; i <= n; ++i)
    {
        if(!fol[i])
        {
            fol[i] = true;
            st[k] = i;
            if(k == p) afisare();
            else back(k + 1);
            fol[i] = false;
        }
    }
}

int main()
{
    f >> n >> p;
    back(1);
    return 0;
}