import java.util.List;
import java.util.ArrayList;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        List<Integer> values = new ArrayList<Integer>();
        List<Integer> costs = new ArrayList<Integer>();
        sc.nextLine();

        for (int i=0;i<n;i++){
            values.add(sc.nextInt());
        }

        sc.nextLine();

        for (int i=0;i<n;i++){
            costs.add(sc.nextInt());
        }

        int maxValue = 0;
        for (int i=0;i<n;i++){
            if((values.get(i)-costs.get(i))> 0){
                maxValue += values.get(i)-costs.get(i);
            }
        }
        System.out.println(maxValue);
    }

}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz