Problems
The number of primes
The number of primes
Vasya loves prime numbers. He decided to find the sum of the first $n$ prime numbers, that are divisible by $k$. Help him.
\InputFile
One integer $k\:(1 \le k \le 1000)$.
\OutputFile
Print the minimum possible value of $n$.
Input example #1
7
Output example #1
5