C31232233133313221211113313331333133313331212111112111113331322331122223231   >>    C3123223313331322121111331333133313331333121211111211111333132233112222323   <<    C31232233133313221211113313331333133313331212111112111113331322331122223233   >>      C31232233133313221211113313331333133313331212111112111113331322331122223232   >>