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The materials for the include problems and solutions for both the Fall and Spring rounds.

You can find the official papers, including specific versions for different grade levels and difficulty settings, on the Official Tournament of Towns website and the University of Toronto's mirror site . The materials for the include problems and solutions

A problem involving a 60-digit number made of ones and eights, requiring a proof of divisibility by a 30-digit number consisting only of nines. The materials for the include problems and solutions