#include    <fstream>

using namespace std;

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

typedef unsigned short us;
us n, k, st[20], c[20];

void bt(short lvl)
{
    for(us i = st[lvl-1] + 1; i <= n; i++)
    {
        st[lvl] = i;
        if(lvl == k)
        {
            for(us i = 1; i <= k; i++)
                fout << st[i] << " ";
            fout << "\n";
        }
        else bt(lvl + 1);
    }
}

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