C31232233133313221211113313331333133313331212111133133313233233121311311   >>    C3123223313331322121111331333133313331333121211113313331323323312131131   <<    C31232233133313221211113313331333133313331212111133133313233233121311313   >>      C31232233133313221211113313331333133313331212111133133313233233121311312   >>