Untitled

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class Pob2 {
	static{
		try {
			System.setIn(new FileInputStream("src/inp.txt"));
//			System.setOut(new PrintStream("src/out.txt"));
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	static double diff=1e-13;//NOTE o day phai la 1e-13ko phai 1e-9
	
	static double search(int[] mass,int pos[],int start,int end,double l,double r) {
		while(r-l>=diff) {	//sai khac giua toa do >= diff (sai so cho phep)
			double m=l+(r-l)/2d;
			double f=0;
			
			for(int i=0;i<=start;++i)
				f+=(double)mass[i]/((m-pos[i])*(m-pos[i]));//m la toa do cua vat bi tac dong luc
			for(int i=end;i<pos.length;++i)
				f-=(double)mass[i]/((pos[i]-m)*(pos[i]-m));
			
			if(f<diff && f>-diff)//note xem xet ca sai so cua luc tac dong len diem giua, neu < cho phep thi stop
				break;
			else if(f>0)//luc ben trai>ben phai thi tang l de giam luc ben trai
				l=m;
			else
				r=m;
		}
		
		return l+(r-l)/2d;
	}
	
	/*tim kiem nhi phan
	 * dau tien xac dinh cong thuc tinh luc tac dung len 1 diem bat ky
	 * F=Gm1m2/d^2 => m1 klg vat tac dung, m2 vat bi tac dong, d: kc giua 2 vat
	 * => nhieu vat tac dong len: m1/d1^2 + m2/d2^2 + ... = mn/dn^2
	 * => de can bang luc trai va phai: => m1/d1^2 + m2/d2^2 + ... - mn/dn^2 ~ 0
	 * tim kiem nhi phan theo toa do chieu dai cua tung vat
 	 * */
	
	public static void main(String[] args) {
		Scanner scanner=new Scanner(System.in);
		int t=0;
		
		while(scanner.hasNext()) {
			int n=Integer.parseInt(scanner.next());
			int[] pos=new int[n],mass=new int[n];
			for(int i=0;i<n;++i) pos[i]=Integer.parseInt(scanner.next());
			for(int i=0;i<n;++i) mass[i]=Integer.parseInt(scanner.next());
			
			System.out.printf("#%d ",++t);
			for(int i=0;i<n-1;++i)//xac dinh n-1 diem can bang cho n diem
				System.out.printf("%.10f ",search(mass, pos, i, i+1, pos[i], pos[i+1]));
			System.out.print('\n');
		}
		
		scanner.close();
	}
}