#include <bits/stdc++.h>   using namespace std;   int main() {     int d;     cin >> d;     for (int i = 0; i < d; ++i) {       long long n;       cin >> n;       if (n * (n - 4) >= 0) {         cout <<  Y   << fixed << setprecision(9) << (n + sqrt(n * n - 4 * n)) / 2              <<     << n - (n + sqrt(n * n - 4 * n)) / 2;         cout <<   n ;       } else {         cout <<  N n ;       }     }   }   