#include<cstdio>
using namespace std;

FILE *fin, *fout;

int st[19], n, p;

void back (int k)
{
    if (k == p + 1)
    {
        for(int i = 1; i <= p; i++)
            fprintf (fout, "%d ", st[i]);

        fprintf (fout, "\n");
    }
    else
    {
        for (int i = st[k-1] + 1; i <= n - p + k; i++)
        {
            st[k] = i;
            back (k + 1);
        }
    }
}

int main()
{
    fin = fopen ("combinari.in", "r");
    fout = fopen ("combinari.out", "w");

    fscanf (fin, "%d %d", &n, &p);

    back (1);

    fclose (fin); fclose (fout);

    return 0;
}