import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int [] v = new int[n];
        int [] c = new int[n];
        
            for(int i = 0; i<n; i++){
                v[i] = sc.nextInt();
            }
            
            for(int i = 0; i<n; i++){
                c[i] = sc.nextInt();
            }
            
            int x = 0;
            int y = 0;
            
            for(int i = 0; i<n; i++){
                if(v[i] - c[i] > 0){
                    x += v[i];
                    y += c[i];
                }
            }
            
            System.out.println(x-y);
    }
}

/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