C1111133313331323223313331333133313113313222112111133131133132323132221   >>    C111113331333132322331333133313331311331322211211113313113313232313222   <<    C1111133313331323223313331333133313113313222112111133131133132323132223   >>      C1111133313331323223313331333133313113313222112111133131133132323132222   >>