C13223313311212111133133313331333133313231323133212111113223111   >>    C1322331331121211113313331333133313331323132313321211111322311   <<    C13223313311212111133133313331333133313231323133212111113223113   >>      C13223313311212111133133313331333133313231323133212111113223112   >>