#include <bits/stdc++.h>
#define NMAX 20

using namespace std;

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

int n, k;

bitset <NMAX> freq;
int v[NMAX];

void afisare()
{
    for(int i = 0; i < k; i++)
        g << v[i] << " ";
    g << '\n';
}

void bkt(int p)
{
    if(p == k)
        afisare();
    else
        for(int i = 1; i <= n; i++)
            if(freq[i] == 0 && i > v[p - 1])
            {
                freq[i] = 1;
                v[p] = i;
                bkt(p + 1);
                freq[i] = 0;
            }
}


int main()
{
    f >> n >> k;

    bkt(0);

    return 0;
}