The ant - script
An ant goes from A to B on a parallelepipedic box with height a, width b and length c
The sides are named B(bottom), L(left), R(right), U(upper).
A is at (x,y) from front corner R-B, B at (u,v) from rear corner R-U.
The path is noted from the travelled lateral sides :
Examples : purple = U, green = R, blue = BR, red = BRU etc...