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 N2.
输入格式
The first line of input contains the only integer N (1 ≤ N ≤ 109).
输出格式
Please, print to output “YES” provided that N! is divisible by N2, otherwise print “NO”.