There was a story of a mathematician in primary school who later became famous. The story goes that the teacher asked them to add up all the numbers between 1-1,000. The young man finished in only a few minutes. The teacher asked him how he'd gotten the right answer and he replied that by adding 1 with 99 you get 100, by adding 2 with 98 you get 100, by adding 3 with 97 you get 100... etc.
Who was it?
Who was it?