void
fun (nb)
int nb;
{
int th, h, em, nlwm, nlwS, nlw, sy;
while (nb--)
while (h--)
nlw = nlwm;
while (nlw)
if (nlwS == 1)
}
else
nlwS--; nlw--;
if (em)
nlwS--;
if (++sy == th)
sy = 0;