C13223313311212111133133313331211113313231123313331322331311112121   >>    C1322331331121211113313331333121111331323112331333132233131111212   <<    C13223313311212111133133313331211113313231123313331322331311112123   >>      C13223313311212111133133313331211113313231123313331322331311112122   >>