#include <bits/stdc++.h>   using namespace std;   void solve(int d) {     cout << fixed << setprecision(9);     if (d == 0) {       cout <<  Y   << 0.0 <<     << 0.0;     } else if (d >= 1 && d < 4)       cout <<  N ;     else {       double D = sqrt(d * (d - 4));       double a = (d + D) / 2.0;       double b = (d - D) / 2.0;       cout <<  Y   << a <<     << b;     }   }   int main() {     int t;     cin >> t;     while (t--) {       int d;       cin >> d;       solve(d);       cout << endl;     }     return 0;   }   