#include <bits/stdc++.h>

using namespace std;

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

void usain_bolt()
{
    ios::sync_with_stdio(false);
    fin.tie(0);
}

int n, m, ans[20];
bool f[20];

void solve(int k)
{
    for(int i = ans[k - 1] + 1; i <= n; ++i) {
        if(f[i] == false) {
            ans[k] = i;
            f[i] = true;
            if(k < m) {
                solve(k + 1);
            }
            else {
                for(int i = 1; i <= m; ++i) {
                    fout << ans[i] << " ";
                }
                fout << "\n";
            }
            f[i] = false;
        }
    }
}

int main()
{
    usain_bolt();

    fin >> n >> m;
    solve(1);
    return 0;
}