C13223313311212111133133313331333133313231323133212111133132231221   >>    C1322331331121211113313331333133313331323132313321211113313223122   <<    C13223313311212111133133313331333133313231323133212111133132231223   >>      C13223313311212111133133313331333133313231323133212111133132231222   >>