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 CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
bool isprime(int u) {
  if (u <= 1) return false;
  if (u <= 3) return true;
  if (u % 2 == 0 || u % 3 == 0) return false;
  for (int i = 5; i * i <= u; i = i + 6) {
    if (u % i == 0 || u % (i + 2) == 0) {
      return false;
    }
  }
  return true;
}
bool gg(long long x) {
  int y = (int)sqrt(x);
  if (1LL * y * y != x) return false;
  return isprime(y) ? true : false;
}
int main() {
  int a;
  long long b;
  cin >> a;
  for (int i = 1; i <= a; i++) {
    cin >> b;
    if (gg(b))
      cout << "YES" << endl;
    else
      cout << "NO" << endl;
  }
}