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[] c = new int[n];
    int ans = 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]) {
        ans += v[i] - c[i];
      }
    }

    System.out.println(ans);

  }
} 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[] c = new int[n];
    int ans = 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]) {
        ans += v[i] - c[i];
      }
    }

    System.out.println(ans);

  }
} 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 ans = 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]) {
        ans += v[i] - c[i];
      }
    }

    System.out.println(ans);

  } main {

    Scanner sc = new Scanner(System.in);

    int n = sc.nextInt();
    int[] v = new int[n];
    int[] c = new int[n];
    int ans = 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]) {
        ans += v[i] - c[i];
      }
    }

    System.out.println(ans);

  } 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 ans = 0; ans 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]) {
        ans += v[i] - c[i];
      }
    } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
      if (v[i] > c[i]) {
        ans += v[i] - c[i];
      }
    } {
      if (v[i] > c[i]) {
        ans += v[i] - c[i];
      }
    } if (v[i] > c[i]) {
        ans += v[i] - c[i];
      } v[i] > c[i] v[i] v i c[i] c i {
        ans += v[i] - c[i];
      } ans += v[i] - c[i] ans v[i] - c[i] v[i] v i c[i] c i System.out.println(ans) System.out.println System.out System System.out ans 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 ans = 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]) {
        ans += v[i] - c[i];
      }
    }

    System.out.println(ans);

  }
} 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 ans = 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]) {
        ans += v[i] - c[i];
      }
    }

    System.out.println(ans);

  }
} 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[] c = new int[n];
    int ans = 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]) {
        ans += v[i] - c[i];
      }
    }

    System.out.println(ans);

  }
}