import java.util.Scanner;

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 sum = 0;

    for (int i = 0; i < n; ++i) {
      v[i] = sc.nextInt();
    }

    for (int i = 0; i < n; ++i) {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    }

    System.out.println(sum);
  }
} import java.util.Scanner; Scanner 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 sum = 0;

    for (int i = 0; i < n; ++i) {
      v[i] = sc.nextInt();
    }

    for (int i = 0; i < n; ++i) {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    }

    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];
    int sum = 0;

    for (int i = 0; i < n; ++i) {
      v[i] = sc.nextInt();
    }

    for (int i = 0; i < n; ++i) {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    }

    System.out.println(sum);
  } main {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();

    int[] v = new int[n];
    int sum = 0;

    for (int i = 0; i < n; ++i) {
      v[i] = sc.nextInt();
    }

    for (int i = 0; i < n; ++i) {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    }

    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 int sum = 0; sum 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) {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    } int i = 0; int i = 0; i 0 i < n i n ++i ++i i {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    } {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    } int c = sc.nextInt(); c sc.nextInt() sc.nextInt sc sum = (v[i] > c) ? sum + v[i] - c : sum sum (v[i] > c) ? sum + v[i] - c : sum (v[i] > c) v[i] v i c sum + v[i] - c sum + v[i] sum v[i] v i c sum 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];
    int sum = 0;

    for (int i = 0; i < n; ++i) {
      v[i] = sc.nextInt();
    }

    for (int i = 0; i < n; ++i) {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    }

    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];
    int sum = 0;

    for (int i = 0; i < n; ++i) {
      v[i] = sc.nextInt();
    }

    for (int i = 0; i < n; ++i) {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    }

    System.out.println(sum);
  }
} Main
import java.util.Scanner;

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 sum = 0;

    for (int i = 0; i < n; ++i) {
      v[i] = sc.nextInt();
    }

    for (int i = 0; i < n; ++i) {
      int c = sc.nextInt();
      sum = (v[i] > c) ? sum + v[i] - c : sum;
    }

    System.out.println(sum);
  }
}