import java.io.File;
import java.io.IOException;
import java.util.Scanner;

public class bear {

	
	public static void main(String[] args)throws IOException {
		Scanner scanner = new Scanner(new File("bear.in"));
		
		int dataSets = scanner.nextInt();
		//int secondNum = fi.nextInt();
		
		//int sum = firstNum + secondNum;
		
		//System.out.println(firstNum + " + " + secondNum + " = " + sum);
		for (int set = 0; set < dataSets; set++) {
			int numBalloons = scanner.nextInt();
			double poosWeight = scanner.nextDouble();
			
			double totalBalloonVolume = 0;
			
			
			
			for (int balloon = 0; balloon < numBalloons; balloon++){
				double balloonRadius = scanner.nextDouble();
				totalBalloonVolume += 4.0 / 3.0 * Math.PI * balloonRadius * balloonRadius * balloonRadius;
			}
			boolean canLift = false;
			if (totalBalloonVolume / 1000.0 > poosWeight ){
				canLift = true;
			}
			
			System.out.println("Data Set " + (set+1) + ":");
			System.out.println((canLift) ? "Yes" : "No");
			System.out.println();
		}
		
	}
}