C13223313311212111133133313331333131212111113331333133313121133211   >>    C1322331331121211113313331333133313121211111333133313331312113321   <<    C13223313311212111133133313331333131212111113331333133313121133213   >>      C13223313311212111133133313331333131212111113331333133313121133212   >>