C13223313311212111133133313331333131212111113331333131323223121   >>    C1322331331121211113313331333133313121211111333133313132322312   <<    C13223313311212111133133313331333131212111113331333131323223123   >>      C13223313311212111133133313331333131212111113331333131323223122   >>