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我国古代算书《孙子算经》里有这样的问题及解答：“今有物不知其数，三三数之剩二，五五数上剩三，七七数之剩二，问物几何？答曰：二十三。
There are such questions and answers in the ancient book of the grandson of the ancient China: “There are objects that are unknown, and the number of the three or three numbers is two, and the number five or five is left three. The remaining seventy-seven is the second. Answer: 23rd.