C13223313311212111133133313331333131212111113331333132233131212121   >>    C1322331331121211113313331333133313121211111333133313223313121212   <<    C13223313311212111133133313331333131212111113331333132233131212123   >>      C13223313311212111133133313331333131212111113331333132233131212122   >>