C31232233133313221211113313331333133313332321333132313231313331   >>    C3123223313331322121111331333133313331333232133313231323131333   <<    C31232233133313221211113313331333133313332321333132313231313333   >>      C31232233133313221211113313331333133313332321333132313231313332   >>