Co ́ hay không sư ̣ sô ́ ng trên ca ́ c ha ̀ nh tinh kha ́ c?                                  !!"             #    $  !    %      $  #        &  '          (&      $      ! )      "      *+,    !                -         #       )            $                  .         !"      -            /    &  '  )      +                    ! 0      !        #      (