C13223313311212111133133313331211113313231123313331323133313232123231   >>    C1322331331121211113313331333121111331323112331333132313331323212323   <<    C13223313311212111133133313331211113313231123313331323133313232123233   >>      C13223313311212111133133313331211113313231123313331323133313232123232   >>