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1356. Something EasierTime limit: 1.0 second Memory limit: 64 MB “How do physicists define prime numbers? Very easily: prime numbers are the number 2 and all the odd numbers greater than 2. They may show that this definition corresponds to the mathematical one: 3 is prime, 5 is prime, 7 is prime… 9? 9 is certainly not prime. Then: 11 is prime, 13 is prime. So 9 is the experiment mistake.” From mathematical analysis course Once physicist and mathematician argued how many prime numbers one needed for the purpose that their sum was equal to N. One said that it wasn’t known and the other that 3 was always enough. The question is how many. InputThe first line contains T, an amount of tests. Then T lines with integer N follow (0 ≤ T ≤ 20; 2 ≤ N ≤ 109). OutputFor each test in a separate line you should output prime numbers so that their sum equals to N. An amount of such prime numbers is to be minimal possible. Sample
Problem Author: Aleksandr Bikbaev Problem Source: USU Junior Championship March'2005 Tags: number theory |