C13223313311212111133133313331333133313233121333133313331333232112312311   >>    C1322331331121211113313331333133313331323312133313331333133323211231231   <<    C13223313311212111133133313331333133313233121333133313331333232112312313   >>      C13223313311212111133133313331333133313233121333133313331333232112312312   >>