import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] v=new int[n];
        for(int i=0;i<n;i++){
          v[i]= sc.nextInt();
        }
        int[] c=new int[n];
        int sum=0;
        for(int i=0;i<n;i++){
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        }
        System.out.println(sum);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] v=new int[n];
        for(int i=0;i<n;i++){
          v[i]= sc.nextInt();
        }
        int[] c=new int[n];
        int sum=0;
        for(int i=0;i<n;i++){
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        }
        System.out.println(sum);
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] v=new int[n];
        for(int i=0;i<n;i++){
          v[i]= sc.nextInt();
        }
        int[] c=new int[n];
        int sum=0;
        for(int i=0;i<n;i++){
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        }
        System.out.println(sum);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] v=new int[n];
        for(int i=0;i<n;i++){
          v[i]= sc.nextInt();
        }
        int[] c=new int[n];
        int sum=0;
        for(int i=0;i<n;i++){
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        }
        System.out.println(sum);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int[] v=new int[n]; v new int[n] n for(int i=0;i<n;i++){
          v[i]= sc.nextInt();
        } int i=0; int i=0; i 0 i<n i n i++ i++ i {
          v[i]= sc.nextInt();
        } {
          v[i]= sc.nextInt();
        } v[i]= sc.nextInt() v[i] v i sc.nextInt() sc.nextInt sc int[] c=new int[n]; c new int[n] n int sum=0; sum 0 for(int i=0;i<n;i++){
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        } int i=0; int i=0; i 0 i<n i n i++ i++ i {
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        } {
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        } c[i]= v[i]-sc.nextInt() c[i] c i v[i]-sc.nextInt() v[i] v i sc.nextInt() sc.nextInt sc sum+=c[i]>=0?c[i]:0 sum c[i]>=0?c[i]:0 c[i]>=0 c[i] c i 0 c[i] c i 0 System.out.println(sum) System.out.println System.out System System.out sum String[] args args public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] v=new int[n];
        for(int i=0;i<n;i++){
          v[i]= sc.nextInt();
        }
        int[] c=new int[n];
        int sum=0;
        for(int i=0;i<n;i++){
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        }
        System.out.println(sum);
    }
} public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] v=new int[n];
        for(int i=0;i<n;i++){
          v[i]= sc.nextInt();
        }
        int[] c=new int[n];
        int sum=0;
        for(int i=0;i<n;i++){
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        }
        System.out.println(sum);
    }
} Main
import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] v=new int[n];
        for(int i=0;i<n;i++){
          v[i]= sc.nextInt();
        }
        int[] c=new int[n];
        int sum=0;
        for(int i=0;i<n;i++){
          c[i]= v[i]-sc.nextInt();
          sum+=c[i]>=0?c[i]:0;
        }
        System.out.println(sum);
    }
}
