C13223313311212111133133313331333133313233212121111331323112311   >>    C1322331331121211113313331333133313331323321212111133132311231   <<    C13223313311212111133133313331333133313233212121111331323112313   >>      C13223313311212111133133313331333133313233212121111331323112312   >>