C13223313311212111133133313331333133313231323133211331333133312121221   >>    C1322331331121211113313331333133313331323132313321133133313331212122   <<    C13223313311212111133133313331333133313231323133211331333133312121223   >>      C13223313311212111133133313331333133313231323133211331333133312121222   >>