C132233133112121111331333133313331312121111133313331333121111332222121   >>    C13223313311212111133133313331333131212111113331333133312111133222212   <<    C132233133112121111331333133313331312121111133313331333121111332222123   >>      C132233133112121111331333133313331312121111133313331333121111332222122   >>