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 PYTHON3):

Solution:
from math import *
from sys import stdin
from sys import stdout

sprint = stdout.write
sinput = stdin.readline

def is_prime(a):
    m = int(sqrt(a))
    if a%2 == 0 and a != 2:
        return 'NO\n'
    for i in range(3,m+1,2):
        if a % i == 0:
            return 'NO\n'
    return "YES\n"

n = int(sinput())
arr = [int(x) for x in sinput().split()]

for i in arr:
    if int(sqrt(i))**2 == i and i != 1 and int(sqrt(i)):
        sprint(is_prime(int(sqrt(i))))
    else:
        sprint('NO\n')