import java.util.*;

public class Main {

  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int[] data = new int[n];
    int sum = 0;

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

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

    for (int i = 0; i < n; i++) {
      if (data[i] > 0) sum += data[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[] data = new int[n];
    int sum = 0;

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

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

    for (int i = 0; i < n; i++) {
      if (data[i] > 0) sum += data[i];
    }

    System.out.println(sum);
  }

} Main public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int[] data = new int[n];
    int sum = 0;

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

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

    for (int i = 0; i < n; i++) {
      if (data[i] > 0) sum += data[i];
    }

    System.out.println(sum);
  } main {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int[] data = new int[n];
    int sum = 0;

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

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

    for (int i = 0; i < n; i++) {
      if (data[i] > 0) sum += data[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[] data = new int[n]; data new int[n] n int sum = 0; sum 0 for (int i = 0; i < n; i++) {
      data[i] = sc.nextInt();
    } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
      data[i] = sc.nextInt();
    } {
      data[i] = sc.nextInt();
    } data[i] = sc.nextInt() data[i] data i sc.nextInt() sc.nextInt sc for (int i = 0; i < n; i++) {
      data[i] -= sc.nextInt();
    } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
      data[i] -= sc.nextInt();
    } {
      data[i] -= sc.nextInt();
    } data[i] -= sc.nextInt() data[i] data i sc.nextInt() sc.nextInt sc for (int i = 0; i < n; i++) {
      if (data[i] > 0) sum += data[i];
    } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
      if (data[i] > 0) sum += data[i];
    } {
      if (data[i] > 0) sum += data[i];
    } if (data[i] > 0) sum += data[i]; data[i] > 0 data[i] data i 0 sum += data[i] sum data[i] data 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[] data = new int[n];
    int sum = 0;

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

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

    for (int i = 0; i < n; i++) {
      if (data[i] > 0) sum += data[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[] data = new int[n];
    int sum = 0;

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

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

    for (int i = 0; i < n; i++) {
      if (data[i] > 0) sum += data[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[] data = new int[n];
    int sum = 0;

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

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

    for (int i = 0; i < n; i++) {
      if (data[i] > 0) sum += data[i];
    }

    System.out.println(sum);
  }

}
