C132233133112121111331333133313331333132322331333131133132213123233231   >>    C13223313311212111133133313331333133313232233133313113313221312323323   <<    C132233133112121111331333133313331333132322331333131133132213123233233   >>      C132233133112121111331333133313331333132322331333131133132213123233232   >>