C132233133112121111331333133313331333132323213232233132313231221   >>    C13223313311212111133133313331333133313232321323223313231323122   <<    C132233133112121111331333133313331333132323213232233132313231223   >>      C132233133112121111331333133313331333132323213232233132313231222   >>