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A
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CodeForces 505A |
Mr. Kitayuta's Gift
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B
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CodeForces 505B |
Mr. Kitayuta's Colorful Graph
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C
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CodeForces 506A |
Mr. Kitayuta, the Treasure Hunter
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D
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CodeForces 506D |
Mr. Kitayuta's Colorful Graph
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E
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CodeForces 506B |
Mr. Kitayuta's Technology
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F
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CodeForces 506E |
Mr. Kitayuta's Gift
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