C132233133112121111331333133313331323132313223313231323132333133313331333312121   >>    C13223313311212111133133313331333132313231322331323132313233313331333133331212   <<    C132233133112121111331333133313331323132313223313231323132333133313331333312123   >>      C132233133112121111331333133313331323132313223313231323132333133313331333312122   >>