SIX students will compete with delegates from more than 60 countries in the 34th International Mathematical Olympiad in Turkey next month. The students received $2,000 for the trip to Turkey at a prize and flag presentation ceremony held recently. An initial contest was held last July in which 61 finalists aged 19 and above were selected. The finalists took a one-year training course in algebra, geometry and number theories. Six people were picked from among them to represent Hongkong in the Olympiad through a series of competitions, including the Asian Pacific Mathematical Olympiad and the Hongkong final contest in May. The six then took an intensive training course to prepare them for the big challenge. The six students, who all scored As in Mathematics in the HKCEE, said the intensive training had various effects. ''I got Cs instead of Bs in some subjects, but I think it's worth it because it's an honour to represent Hongkong in an international contest,'' Yung Fai, a seventh-former at Chuen Yuen College, said. The students also learned how to allocate their time between the training and their school work. ''It was all right as long as we distributed our time properly,'' Chan Tze-ho of Ying Wa College said. When asked how he became such a good mathematician, Yung Fai said: ''One has to establish a good foundation by understanding the basic principles and working on a lot of problems.'' Hongkong has been taking part in the International Mathematical Olympiad since 1988. Hongkong teams have done well in the past few years, said Dr Shum Kar-Ping, the chairman of International Mathematical Olympiad (Hongkong). Meanwhile, Wong San-keung, the winner of the International Mathematical Olympiad 1994 Logo Design Competition, was awarded a $2,000 book coupon. San-keung, a fifth-former at Queen Elizabeth School, used triangles and squares to represent mathematics and Hongkong as an oriental city.