C12313211232233312111111312111133133313331323133313332322321123311131   >>    C1231321123223331211111131211113313331333132313331333232232112331113   <<    C12313211232233312111111312111133133313331323133313332322321123311133   >>      C12313211232233312111111312111133133313331323133313332322321123311132   >>