C12313211232233312111111312111133133313331323133313331122332321213211231131   >>    C1231321123223331211111131211113313331333132313331333112233232121321123113   <<    C12313211232233312111111312111133133313331323133313331122332321213211231133   >>      C12313211232233312111111312111133133313331323133313331122332321213211231132   >>