import java.util.Scanner;
import java.util.HashMap;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import java.lang.Math;

public class Main {

    static Scanner sc = new Scanner(System.in);

    public static void main(String[] args) {
        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++) {
            if (v[i] > c[i]) {
                ans += v[i] - c[i];
            }
        }
        System.out.println(ans);
    }

} import java.util.Scanner; Scanner java.util import java.util.HashMap; HashMap java.util import java.util.List; List java.util import java.util.Arrays; Arrays java.util import java.util.ArrayList; ArrayList java.util import java.lang.Math; Math java.lang public class Main {

    static Scanner sc = new Scanner(System.in);

    public static void main(String[] args) {
        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++) {
            if (v[i] > c[i]) {
                ans += v[i] - c[i];
            }
        }
        System.out.println(ans);
    }

} Main static Scanner sc = new Scanner(System.in); sc new Scanner(System.in) public static void main(String[] args) {
        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++) {
            if (v[i] > c[i]) {
                ans += v[i] - c[i];
            }
        }
        System.out.println(ans);
    } main {
        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++) {
            if (v[i] > c[i]) {
                ans += v[i] - c[i];
            }
        }
        System.out.println(ans);
    } 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++) {
            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 {

    static Scanner sc = new Scanner(System.in);

    public static void main(String[] args) {
        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++) {
            if (v[i] > c[i]) {
                ans += v[i] - c[i];
            }
        }
        System.out.println(ans);
    }

} public class Main {

    static Scanner sc = new Scanner(System.in);

    public static void main(String[] args) {
        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++) {
            if (v[i] > c[i]) {
                ans += v[i] - c[i];
            }
        }
        System.out.println(ans);
    }

} Main
import java.util.Scanner;
import java.util.HashMap;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;
import java.lang.Math;

public class Main {

    static Scanner sc = new Scanner(System.in);

    public static void main(String[] args) {
        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++) {
            if (v[i] > c[i]) {
                ans += v[i] - c[i];
            }
        }
        System.out.println(ans);
    }

}
