C31232233133313221211113313331333133313331212111111331311331333133322333233231   >>    C3123223313331322121111331333133313331333121211111133131133133313332233323323   <<    C31232233133313221211113313331333133313331212111111331311331333133322333233233   >>      C31232233133313221211113313331333133313331212111111331311331333133322333233232   >>