C132233133112121111331333133313331333132322331333132213231313331   >>    C13223313311212111133133313331333133313232233133313221323131333   <<    C132233133112121111331333133313331333132322331333132213231313333   >>      C132233133112121111331333133313331333132322331333132213231313332   >>