C31232233133313221211113313331333133313331212111112111133232212312331   >>    C3123223313331322121111331333133313331333121211111211113323221231233   <<    C31232233133313221211113313331333133313331212111112111133232212312333   >>      C31232233133313221211113313331333133313331212111112111133232212312332   >>