CList a, b; (a, b) = [[], []]; assert ! (a < b)
b = [1] as CList;              assert   (a < b)
a = [1] as CList;              assert ! (a < b)
b = [2] as CList;              assert   (a < b)
a = [2, -1, 0] as CList;       assert ! (a < b)
b = [2, -1] as CList;          assert ! (a < b)
b = [2, -1, 0] as CList;       assert ! (a < b)
b = [2, -1, 0, -17] as CList;  assert   (a < b)
a = [2,  8, 0] as CList;       assert ! (a < b)