content: package v012;
  import java.io.BufferedReader;
  import java.io.FileReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.io.PrintWriter;
  import java.util.StringTokenizer;
  
  
  public class CurvyLittleBottles_UVa1280 {
  
  	static final double EPS = 1e-9;
  
  	public static void main(String[] args) throws Exception 
  	{
  		Scanner sc = new Scanner(System.in);
  		PrintWriter out = new PrintWriter(System.out);
  
  		int tc = 1;
  
  		while(sc.ready())
  		{
  			int n = sc.nextInt();
  			Polynomial p = new Polynomial();
  			for(int i = 0; i <= n; ++i)
  				p.coeffs[i] = sc.nextDouble();
  
  			p = p.square();
  
  			double xLow = sc.nextDouble(), xHigh = sc.nextDouble(), inc = sc.nextDouble();
  			double[] marks = new double[8];
  			int idx = 0;
  			double xCur = xLow;
  			while(idx < 8)
  			{
  
  				double mark = placeMark(p, xCur, xHigh, inc);
  				if(mark < -1000)
  					break;
  				xCur = mark;
  				marks[idx++] = mark - xLow;
  			}
  
  			out.printf("Case %d: %.2f\n", tc++, p.rotationVolume(xLow, xHigh));
  			if(idx == 0)
  				out.println("insufficient volume");
  			else
  			{
  				for(int i = 0; i < idx - 1; ++i)
  					out.printf("%.2f ", marks[i]);
  				out.printf("%.2f\n", marks[idx-1]);
  			}
  		}
  		out.flush();
  		out.close();
  	}
  
  	static double placeMark(Polynomial p, double xLow, double xHigh, double inc)
  	{
  		double base = xLow, v = 0.0;
  		while(Math.abs(xHigh - xLow) > EPS)
  		{
  			double mid = (xLow + xHigh) / 2;
  			v = p.rotationVolume(base, mid);
  			if(v < inc)
  				xLow = mid;
  			else
  				xHigh = mid;
  		}
  		if(Math.abs(v - inc) > 1e-5)
  			return -10000;
  		
  		return xLow;
  	}
  
  	static class Polynomial
  	{
  		double[] coeffs = new double[21];
  
  		Polynomial square()
  		{
  			Polynomial p = new Polynomial();
  			for(int i = 0; i <= 10; ++i)
  			{
  				double a = coeffs[i];
  				for(int j = 0; j <= 10; ++j)
  					p.coeffs[i+j] += a * coeffs[j];
  			}
  			return p;
  		}
  
  		double rotationVolume(double xLow, double xHigh)
  		{
  			double v = 0.0;
  			for(int i = 0; i <= 20; ++i)
  				v += coeffs[i] * compute(i + 1, xLow, xHigh) / (i + 1);
  			return v * Math.PI;
  		}
  
  		double compute(int pow, double a, double b)
  		{
  			return Math.pow(b, pow) - Math.pow(a, pow);
  		}
  	}
  
  	static class Scanner 
  	{
  		StringTokenizer st;
  		BufferedReader br;
  
  		public Scanner(InputStream s){	br = new BufferedReader(new InputStreamReader(s));}
  
  		public Scanner(FileReader r){	br = new BufferedReader(r);}
  
  		public String next() throws IOException 
  		{
  			while (st == null || !st.hasMoreTokens()) 
  				st = new StringTokenizer(br.readLine());
  			return st.nextToken();
  		}
  
  		public int nextInt() throws IOException {return Integer.parseInt(next());}
  
  		public long nextLong() throws IOException {return Long.parseLong(next());}
  
  		public String nextLine() throws IOException {return br.readLine();}
  
  		public double nextDouble() throws IOException
  		{
  			String x = next();
  			StringBuilder sb = new StringBuilder("0");
  			double res = 0, f = 1;
  			boolean dec = false, neg = false;
  			int start = 0;
  			if(x.charAt(0) == '-')
  			{
  				neg = true;
  				start++;
  			}
  			for(int i = start; i < x.length(); i++)
  				if(x.charAt(i) == '.')
  				{
  					res = Long.parseLong(sb.toString());
  					sb = new StringBuilder("0");
  					dec = true;
  				}
  				else
  				{
  					sb.append(x.charAt(i));
  					if(dec)
  						f *= 10;
  				}
  			res += Long.parseLong(sb.toString()) / f;
  			return res * (neg?-1:1);
  		}
  
  		public boolean ready() throws IOException {return br.ready();}
  
  
  	}
  }