C132233133112121111331333133313331333132313223331211111333231121   >>    C13223313311212111133133313331333133313231322333121111133323112   <<    C132233133112121111331333133313331333132313223331211111333231123   >>      C132233133112121111331333133313331333132313223331211111333231122   >>