C312322331333132212111133133313113313331331121111133311211312311   >>    C31232233133313221211113313331311331333133112111113331121131231   <<    C312322331333132212111133133313113313331331121111133311211312313   >>      C312322331333132212111133133313113313331331121111133311211312312   >>