C31232233133313221211113313331333133313331212111133133313221333133313113213321   >>    C3123223313331322121111331333133313331333121211113313331322133313331311321332   <<    C31232233133313221211113313331333133313331212111133133313221333133313113213323   >>      C31232233133313221211113313331333133313331212111133133313221333133313113213322   >>