C12313211232233312111111312111133133313331323133313332322321121322231   >>    C1231321123223331211111131211113313331333132313331333232232112132223   <<    C12313211232233312111111312111133133313331323133313332322321121322233   >>      C12313211232233312111111312111133133313331323133313332322321121322232   >>