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];
    int c[] = new int[n];
    int answer =0;
    for(int i=0;i<n;i++){
      v[i]=sc.nextInt();
    }
    for(int i=0;i<n;i++){
      c[i]=sc.nextInt();
    }
    for(int i=0;i<n;i++){
      if(v[i]>c[i]){
        answer = answer+v[i]-c[i];
      }
    }
    System.out.println(answer);
    
  }
  

  
} 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];
    int c[] = new int[n];
    int answer =0;
    for(int i=0;i<n;i++){
      v[i]=sc.nextInt();
    }
    for(int i=0;i<n;i++){
      c[i]=sc.nextInt();
    }
    for(int i=0;i<n;i++){
      if(v[i]>c[i]){
        answer = answer+v[i]-c[i];
      }
    }
    System.out.println(answer);
    
  }
  

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

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

  
} 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];
    int c[] = new int[n];
    int answer =0;
    for(int i=0;i<n;i++){
      v[i]=sc.nextInt();
    }
    for(int i=0;i<n;i++){
      c[i]=sc.nextInt();
    }
    for(int i=0;i<n;i++){
      if(v[i]>c[i]){
        answer = answer+v[i]-c[i];
      }
    }
    System.out.println(answer);
    
  }
  

  
}