Cut the shape into three parts satisfying the condition
A special present John wanted to congratulate Jack on his birthday. He knew that the best gift for Jack would be a great maths puzzle. So John made him a beautiful cubic box containing...
26 Янв, 2020
A special present John wanted to congratulate Jack on his birthday. He knew that the best gift for Jack would be a great maths puzzle. So John made him a beautiful cubic box containing...
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