C132233133112121111331333133313331312121111133313331333132232313121   >>    C13223313311212111133133313331333131212111113331333133313223231312   <<    C132233133112121111331333133313331312121111133313331333132232313123   >>      C132233133112121111331333133313331312121111133313331333132232313122   >>