# ZeroJudge - b513: 判斷質數-商競103
### 題目連結：https://zerojudge.tw/ShowProblem?problemid=b513
###### tags: `ZeroJudge` `數學` `數論` `質數`

#include <iostream>
using namespace std;
#define SIZE 65536

int primes[SIZE], primeAmount;
bool notPrime[SIZE] = { true, true };

static const auto Initialize = [] {
	cin.sync_with_stdio(false); cin.tie(nullptr);
	for (int i = 2; i < SIZE; ++i) {
		if (!notPrime[i]) {
			primes[primeAmount] = i;
			++primeAmount;
		}
		for (int j = 0; i * primes[j] < SIZE; ++j) {
			notPrime[i * primes[j]] = true;
			if (!(i % primes[j]))
				break;
		}
	}
	return nullptr;
}();

int main() {
	int times, number;
	cin >> times;
	while (times--) {
		cin >> number;
		cout << (notPrime[number] ? 'N' : 'Y') << '\n';
	}
}