Because the scoreboard only allowed three digits, it had to display her score as 1.00. This led to confusion, with even Comăneci unsure of what it meant, until the announcer informed the elated crowd that she had scored a perfect 10. An iconic press photograph (pictured above) shows a beaming Comăneci, arms upraised, beside the scoreboard. Comăneci scored a total of seven 10s at the 1976 Olympics—four on the uneven bars and three on the balance beam. Her main rival, Russian Nelli Kim, scored two 10s in the same competition, in the vault and floor exercise. Comăneci's coach, Béla Károlyi, having defected to the United States in 1981, subsequently coached Mary Lou Retton to gold at the 1984 Olympics in Los Angeles, where she scored 10s in the vault and floor exercise. The first man to score a perfect 10 in Olympic competition was the Russian Alexander Dityatin, who received the score in the vault on the way to a record-breaking eight medals in the 1980 Olympics in Moscow. Among other men to achieve the score was Comăneci's future husband, Bart Conner, who received two 10s in Los Angeles in 1984. The code of points came under review as a result of separate incidents during the 2004 Summer Olympics in Athens, in which gymnasts were believed to have received excessively low scores. A new scoring system was introduced in 2006. It consists of an "A" score, based on the difficulty of elements, and a "B" score, based on artistic impression. While the B score still has a maximum of 10, it is only a part of the overall score. The change had its share of critics. Béla Károlyi said of it: "It's crazy, terrible, the stupidest thing that ever happened to the sport of gymnastics.". Mary Lou Retton remarked: "It's hard to understand. I don't even understand it." Nadia Comăneci commented, "It's so hard to define sports like ours and we had something unique. The 10, it was ours first and now you give it away." "This list may be incomplete."