C31232233133313221211113313331333133313332321333132233131223321   >>    C3123223313331322121111331333133313331333232133313223313122332   <<    C31232233133313221211113313331333133313332321333132233131223323   >>      C31232233133313221211113313331333133313332321333132233131223322   >>