C13223313311212111133133313331323133313331323132233132332123121   >>    C1322331331121211113313331333132313331333132313223313233212312   <<    C13223313311212111133133313331323133313331323132233132332123123   >>      C13223313311212111133133313331323133313331323132233132332123122   >>