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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int ans = 0;
        for (int i = 0; i < n; i++) {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        }
        System.out.println(ans);
        sc.close();

    }

} 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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int ans = 0;
        for (int i = 0; i < n; i++) {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        }
        System.out.println(ans);
        sc.close();

    }

} 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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int ans = 0;
        for (int i = 0; i < n; i++) {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        }
        System.out.println(ans);
        sc.close();

    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] v = new int[n];
        int[] c = new int[n];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int ans = 0;
        for (int i = 0; i < n; i++) {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        }
        System.out.println(ans);
        sc.close();

    } 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 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 int ans = 0; ans 0 for (int i = 0; i < n; i++) {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        } {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        } ans += c[i] < v[i] ? v[i] - c[i] : 0 ans c[i] < v[i] ? v[i] - c[i] : 0 c[i] < v[i] c[i] c i v[i] v i v[i] - c[i] v[i] v i c[i] c i 0 System.out.println(ans) System.out.println System.out System System.out ans sc.close() sc.close sc 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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int ans = 0;
        for (int i = 0; i < n; i++) {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        }
        System.out.println(ans);
        sc.close();

    }

} 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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int ans = 0;
        for (int i = 0; i < n; i++) {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        }
        System.out.println(ans);
        sc.close();

    }

} 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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int ans = 0;
        for (int i = 0; i < n; i++) {
            ans += c[i] < v[i] ? v[i] - c[i] : 0;
        }
        System.out.println(ans);
        sc.close();

    }

}
