The task is to generate the correct answer for a given math problem.
--------
Question: Problem: how many positive integers less than 20 can be expressed as the sum of a positive multiple of 2 and a positive multiple of 3 ?

Answer: 14

Question: Problem: 1,000 ^ 2 + 1,001 ^ 2 + 1,002 ^ 2 + 1,003 ^ 2 + 1,004 ^ 2 =

Answer: 6

Question: Problem: the mean proportional between 4 and 16 is ?

Answer:
1