C132233133112121111331333133313331333132313223331211111333132313211   >>    C13223313311212111133133313331333133313231322333121111133313231321   <<    C132233133112121111331333133313331333132313223331211111333132313213   >>      C132233133112121111331333133313331333132313223331211111333132313212   >>