import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.Scanner;

class Codechef
{
 public static void main (String[] args) throws java.lang.Exception
 {
  Scanner s = new Scanner(System.in);
  int t=s.nextInt();
  for(int i=0;i<t;i++)
  {
      int m=s.nextInt();
      double p=s.nextDouble();
      int r=m;
      double chef;
      chef=1000000000*(1-(Math.pow(-p,m)))/(1+p);
      System.out.println(chef+" "+(1000000000-chef));
  }
 }
}