C1111133313331323223313331333133313311211111211331311312111112111133222321   >>    C111113331333132322331333133313331331121111121133131131211111211113322232   <<    C1111133313331323223313331333133313311211111211331311312111112111133222323   >>      C1111133313331323223313331333133313311211111211331311312111112111133222322   >>