#include <iostream>
#include <fstream>

using namespace std;

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

int n, p;
int sol[20], f[20];
void bt(int k, int ind)
{
    if (k==p+1)
    {
        for (int i=1;i<=p;++i)
        {
            fout << f[i] << " ";
        }
        fout << "\n";
        return;
    }
    for (int i=ind;i<=n;++i)
    {
        sol[i-1]=1;
        if (!sol[i])
        {
            f[k]=i;
            sol[i]=1;
            bt(k+1,ind+1);
            sol[i]=0;
        }
        sol[i-1]=0;
    }
    return;
}

int main()
{
    fin >> n >> p;
    bt(1,1);
    return 0;
}