#include <cstdio>

using namespace std;
int k,n,sol[22],i,m;
void afisare ()
{
    int i;
    for (i=1;i<=m;i++)
    printf ("%d ", sol[i]);
    printf ("\n");
}
void back  (int k)
{
    int i;
    if (k>m)
        afisare ();
    else
    {
        for (i=sol[k-1]+1;i<=n;i++)
        {
            sol[k]=i;
            back (k+1);
        }
    }
}
int main()
{
    freopen ("combinari.in","r",stdin);
    freopen ("combinari.out","w",stdout);
    scanf ("%d %d", &n, &m);
    back(1);
    return 0;
}