C13223313311212111133133313331333133313231323133211331323231221   >>    C1322331331121211113313331333133313331323132313321133132323122   <<    C13223313311212111133133313331333133313231323133211331323231223   >>      C13223313311212111133133313331333133313231323133211331323231222   >>