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 PYTHON):

Solution:
import math
prime=[1]*1000010
def sieve():
    global prime
    prime[1]=0
    prime[0]=0
    for i in range(2,1001):
        if(prime[i]==1):
            j=i
            p=i*i
            while(p<=1000000):
                prime[p]=0
                p+=i

n=input()
ar=map(int,raw_input().split())
sieve()
for m in ar:
    sq=math.sqrt(float(m))
    x=int(sq)
    if(x*x==m and prime[x]==1): print "YES"
    else: print "NO"