public bool IntersectsWith(Cuboid other)
{
return(!(R < other.L || other.R < L || B < other.T || other.B < T ||
N < other.F || other.N < F));
}
public bool Contains(Cuboid small)
{
return(L <= small.L && R >= small.R &&
T <= small.T && B >= small.B &&
N <= small.N && F >= small.F);
}