#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

int main(){

	double h, ang, vel, g = 9.80665, pi = 3.14159;
	vector<double> dist;
	int p1, p2, n;

	while(cin >> h){
		cin >> p1 >> p2;
		cin >> n;

		dist.clear();

		for(int i = 0; i < n; i++){
			cin >> ang >> vel;
			ang = (pi*ang)/180;
			dist.push_back( ( (vel*sin(ang) + sqrt( pow(vel*sin(ang), 2) + (2*g*h)) ) / g ) * vel * cos(ang) );
		}

		cout.precision(5);

		for(int i = 0; i < n; i++){
			cout << fixed << dist.at(i) << " -> " << ((dist.at(i) >= p1 && dist.at(i) <= p2) ? "DUCK" : "NUCK") << endl;
		}
	}

	return 0;
}