a b c x1 c b a x1 C B A x1 A B C x1 b a C x1 C a b x1 c A B x1 B A c x1 A c b x1 b c A x1 B C a x1 a C B x1 a A x1 x1 A a x1 x1 b B x1 x1 B b x1 x1 c C x1 x1 C c x1 x1 a 1 b 1 c 1 C 1 B 1 A 1 FULL ./SRS/Zantema/z066.srs