#include <fstream>

using namespace std;

ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k;
int st[25];

void Afisare()
{
    int i;
    for (i = 1; i <= k; i++)
        fout << st[i] << " ";
    fout << "\n";
}

void Comb(int top)
{
    if (top == k + 1) Afisare();
    else for (int i = st[top-1]+1; i <= n; i++)
            {
                st[top] = i;
                Comb(top + 1);
            }
}

int main()
{
    fin >> n >> k;
    Comb(1);
    fout.close();
    return 0;
}