Problem: We know that prime numbers are positive integers that have exactly two distinct positive divisors. Similarly, we'll call a positive integer t Т-prime, if t has exactly three distinct positive divisors.

You are given an array of n positive integers. For each of them determine whether it is Т-prime or not.

Input

The first line contains a single positive integer, n (1 ≤ n ≤ 105), showing how many numbers are in the array. The next line contains n space-separated integers xi (1 ≤ xi ≤ 1012).

Please, do not use the %lld specifier to read or write 64-bit integers in С++. It is advised to use the cin, cout streams or the %I64d specifier.

Output

Print n lines: the i-th line should contain "YES" (without the quotes), if number xi is Т-prime, and "NO" (without the quotes), if it isn't.

Examples

Input

3
4 5 6


Output

YES
NO
NO

Note

The given test has three numbers. The first number 4 has exactly three divisors — 1, 2 and 4, thus the answer for this number is "YES". The second number 5 has two divisors (1 and 5), and the third number 6 has four divisors (1, 2, 3, 6), hence the answer for them is "NO".

Solution (in JAVA):

Solution:
import java.util.Scanner;
import java.lang.Math;
public class MyClass {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        
        int[] arr = new int[1000001];
        
        for(int i = 3; i<1000001; i = i+2)
        {
            arr[i] = 1;
        }
        
        for(int i = 3; i<1000000 ; i = i+2)
        {
            for(int j = i*3; j<1000001; j= j+2*i)
            {
                arr[j] = 0;
            }
        }
        
        int n = scan.nextInt();
        long cur = 0;
        for(int i = 0; i<n; i++)
        {
            cur = scan.nextLong();
            double sq = Math.sqrt(cur);
            
            if(sq % 1 != 0.0)
                System.out.println("NO");
            else if(sq == 2)
                System.out.println("YES");
            else if(sq % 2 == 0)
                System.out.println("NO");
            else if(arr[(int)sq] == 1)
                System.out.println("YES");
            else
                System.out.println("NO");
        }
        
    }  
    
    
}