#include<cstdio>
#include<iostream>
#include<fstream>
#include<vector>
#include<cmath>

using namespace std;

int main(int argc, const char* argv[])
{
	int K,b;
	double w,l;
	double pi = atan2(0,-1);
	ifstream inf("bear.in");
	inf>>K;
	for(int i = 0; i < K; ++i) {
		inf>>b>>w;
		l = 0;
		for(int j = 0; j < b; ++j) {
			double r;
			inf>>r;
			l += 4.0/3.0*pi*r*r*r/1000.0;
		}
		cout<<"Data Set "<<i+1<<":"<<endl<<(l>w?"Yes":"No")<<endl<<endl;
	}
	return 0;
}