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Brain's Photos Small, but very brave, mouse Brain was not accepted to summer school of young villains. He was upset and decided to postpone his plans 阅读全文
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Cleaner Robot Masha has recently bought a cleaner robot, it can clean a floor without anybody's assistance. Schematically Masha's room is a rectangle, 阅读全文
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Lottery Today Berland holds a lottery with a prize — a huge sum of money! There are k persons, who attend the lottery. Each of them will receive a uni 阅读全文
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Boulevard Welcoming autumn evening is the best for walking along the boulevard and n people decided to do so. The boulevard can be represented as the 阅读全文
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Layer Cake Dasha decided to bake a big and tasty layer cake. In order to do that she went shopping and bought n rectangular cake layers. The length an 阅读全文