There are six international science Olympiads in the world. They are all organized with a simple intention—to __21__ global understanding and mutual appreciation among young scientists in all countries. Each of the six science Olympiads __22__ its specific aims. The aims of the International Mathematical Olympiad (IMO), for example, are three-fold. With arduous but interesting math problems, the first aim of the IMO is to discover, to encourage and, most important of all, to challenge __23__ gifted young people all over the world. Secondly, it is by participating in any IMO contest that young mathematicians of all countries can foster friendly __24__. Based upon its second aim, more international exchanges are encouraged and established. Any IMO contest brings not only young mathematicians together but also their instructors; __25__, the IMO has its final aim to create opportunities for the exchange of information on math schedules and practice throughout the world.
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