Competitions
Азербайджан - подготовка. Март 1
Hometask
Kolya is still trying to pass a test on Numbers Theory. The lecturer is so desperate about Kolya's knowledge that she gives him the same task every time.
The problem is to check if n! is divisible by n^2.
Input data
One integer n (1 ≤ n ≤ 10^9).
Output data
Print "YES" if n! is divisible by n^2, otherwise print "NO".
Examples
Input example #1
3
Output example #1
NO