C1111121111331311211331333133313331323331311312111133132233132231221   >>    C111112111133131121133133313331333132333131131211113313223313223122   <<    C1111121111331311211331333133313331323331311312111133132233132231223   >>      C1111121111331311211331333133313331323331311312111133132233132231222   >>