C1111121111331311211331333133313331323331311312111133132233313233121   >>    C111112111133131121133133313331333132333131131211113313223331323312   <<    C1111121111331311211331333133313331323331311312111133132233313233123   >>      C1111121111331311211331333133313331323331311312111133132233313233122   >>