C13223313311212111133133313331211113313231123313331323323132313231   >>    C1322331331121211113313331333121111331323112331333132332313231323   <<    C13223313311212111133133313331211113313231123313331323323132313233   >>      C13223313311212111133133313331211113313231123313331323323132313232   >>