Problems
Prime number?
Prime number?
Check if the given number is prime. The number is prime if it has no more than two divisors: 1 and the number itself.
Input data
One positive signed 32-bit integer n.
Output data
Print "Yes" if the number is prime, and "No" otherwise.
Examples
Input example #1
5
Output example #1
Yes
Input example #2
12
Output example #2
No