C13223313311212111133133313331333131212111113331333133313113313331323211232331   >>    C1322331331121211113313331333133313121211111333133313331311331333132321123233   <<    C13223313311212111133133313331333131212111113331333133313113313331323211232333   >>      C13223313311212111133133313331333131212111113331333133313113313331323211232332   >>