#include <stdio.h>
int N, K, sol[19];
void bkt (int p);
void afisare ();
int main ()
{
    freopen ("combinari.in", "r", stdin);
    freopen ("combinari.out", "w", stdout);
    scanf ("%d%d", &N, &K);
    bkt(1);
}
void bkt (int p)
{
    if (p==K+1)
    {
        afisare ();
       return;
    }
    for (int i=sol[p-1]+1; i<=N-K+p; i++){
        sol[p]=i;
       bkt(p+1);
    }
}
void afisare ()
{
    for (int i=1; i<=K; i++)
        printf ("%d ", sol[i]);
    printf ("\n");
}