#include <iostream>
#include <fstream>
#include <vector>
using namespace std;

const double PI = 3.141592653589;

int main()
{
	ifstream fin("bear.in");
	int K;
	fin >> K;
	vector<double> balloons;
	for (int i = 0; i < K; i++) {
		int b;
		fin >> b;
		double w;
		fin >> w;
		double bouy = 0.0f;
		for (int j =0; j < b; j++) {
			double r;
			fin >> r;
			double v = (4.0/3.0) * PI * r * r * r;
			bouy += v / 1000.0;
		}
		if (bouy > w)
			cout << "Data Set " << i+1 << ":\n" << "Yes\n\n";
		else
			cout << "Data Set " << i+1 << ":\n" << "No\n\n";
	}
}