rmsphere
int rmsphere(int, int);
rmsphere(x, y); /* remove any spheres that are here */
rmsphere(x, y); /* remove any spheres that are here */
rmsphere(x, y);
rmsphere(x, y); /* remove any spheres that are here */
rmsphere(cc, dd); /* delete the sphere */
rmsphere(x, y); /* delete sphere */
rmsphere(x, y);