#include <fstream>

using namespace std;

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

int sol[20];
int viz[20];
int n, m;

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

void backtracking(int k)
{
    if(k == m)
    {
        afisare();
        return;
    }
    for(int i = 0; i < n; i++)
    {
        if(viz[i] == 0)
        {
            if(k == 0 || sol[k-1] < i+1)
            {
                viz[i] = 1;
                sol[k] = i+1;
                backtracking(k+1);
                viz[i] = 0;
            }
        }
    }
}

int main()
{
    fin >> n >> m;
    backtracking(0);
    return 0;
}