KhoangCachVaTichVoHuong

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package ktgk2;

import java.util.*;

/**
 *
 * @author nguyenanhkiet
 * Khoang cach va tich vo huong
 */
public class KTGK2 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        Scanner cin = new Scanner(System.in);
        int t = Integer.parseInt(cin.nextLine());
        while(t-->0){
            String s1 = cin.nextLine();
            String st1[] = s1.trim().split("\\s+");
            int amount1 = st1.length;
            double arr1[] = new double[amount1];
            for(int i = 0; i < amount1; i++){
                arr1[i] = Double.parseDouble(st1[i]);
            }
            String s2 = cin.nextLine();
            String st2[] = s2.trim().split("\\s+");
            int amount2 = st2.length;
            double arr2[] = new double[amount2];
            for(int i = 0; i < amount2; i++){
                arr2[i] = Double.parseDouble(st2[i]);
            }
            double kc = 0, tvh = 0;
            for(int i = 0; i < amount1; i++){
                kc = kc + ((arr1[i]-arr2[i])*(arr1[i]-arr2[i]));
                tvh = tvh + (arr1[i] * arr2[i]);
            }
            kc = Math.sqrt(kc);
            long res = (long)tvh;
            System.out.println(String.format("%.2f %d", kc, res));
        }

    }

}