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