C12313211232233312111111312111133133313331333112331311311213331113221   >>    C1231321123223331211111131211113313331333133311233131131121333111322   <<    C12313211232233312111111312111133133313331333112331311311213331113223   >>      C12313211232233312111111312111133133313331333112331311311213331113222   >>