喜鹊和乌鸦落在一位古希腊数学家的墓碑上。只见墓碑上写着:“过路人,这儿埋着古希腊数学家丢番图的骨灰。下面的描述可以告诉你他的寿命有多长:他生命的1/6是幸福的童年;他又活了人生的1/(12),长起了稀稀的胡须;他结了婚,还没有孩子,又度过了生命的1/7;再过了5年,他感到很幸福,得了头胎儿子;可是,命运给这个孩子在这世界 Magpies and crows fall on the tombstone of an ancient Greek mathematician. I saw the tombstone reads: ”Passers-by, here buried the ashes of the ancient Greek mathematician Diophant. The following description can tell you how long his life: one sixth of his life is a happy childhood; he He lived a life of 1 / (12), grew a sparse beard; he married, had no children, and lived a life of 1/7; another 5 years, he felt very happy, won First-born fetus; however, destiny gives this child in this world