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>
int siv[1000000];
int main() {
  int i, j;
  siv[1] = 1;
  for (i = 4; i <= 1000000; i += 2) siv[i] = 1;
  for (i = 3; i <= 1000; i += 2)
    if (!siv[i])
      for (j = i * i; j <= 1000000; j += i + i) siv[j] = 1;
  int n;
  long long x;
  scanf("%d", &n);
  while (n--) {
    scanf("%lld", &x);
    double a = sqrt(x);
    float b = a - (int)a;
    int c = a;
    if (b == 0 && siv[c] == 0)
      printf("YES\n");
    else
      printf("NO\n");
  }
  return 0;
}