import java.util.*;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int num = sc.nextInt();
        int value[] = new int[num];
        int cost[] = new int[num];
        int sumValue = 0;
        int sumCost = 0;

        for (int i = 0; i < num; i++) {
           value[i] = sc.nextInt(); 
        }
        for (int i = 0; i < num; i++) {
           cost[i] = sc.nextInt(); 
        }
        sc.close();
        for (int i = 0; i < num; i++) {
           if (value[i] - cost[i] > 0) {
               sumValue += value[i];
               sumCost += cost[i];
           }
        }
        System.out.println(sumValue - sumCost);
    }
}
/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