C13223313311212111133133313331333133313233212121111331323211111   >>    C1322331331121211113313331333133313331323321212111133132321111   <<    C13223313311212111133133313331333133313233212121111331323211113   >>      C13223313311212111133133313331333133313233212121111331323211112   >>