C132233133112121111331333133313331333132322331333133313331313232223221   >>    C13223313311212111133133313331333133313232233133313331333131323222322   <<    C132233133112121111331333133313331333132322331333133313331313232223223   >>      C132233133112121111331333133313331333132322331333133313331313232223222   >>