import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int[] b = new int[a];
        int[] c = new int[a];
        int sum = 0;
        for (int i = 0; i < a; i++) {
            b[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            c[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        }
        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 a = sc.nextInt();
        int[] b = new int[a];
        int[] c = new int[a];
        int sum = 0;
        for (int i = 0; i < a; i++) {
            b[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            c[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        }
        System.out.println(sum);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int[] b = new int[a];
        int[] c = new int[a];
        int sum = 0;
        for (int i = 0; i < a; i++) {
            b[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            c[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        }
        System.out.println(sum);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int[] b = new int[a];
        int[] c = new int[a];
        int sum = 0;
        for (int i = 0; i < a; i++) {
            b[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            c[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        }
        System.out.println(sum);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int[] b = new int[a]; b new int[a] a int[] c = new int[a]; c new int[a] a int sum = 0; sum 0 for (int i = 0; i < a; i++) {
            b[i] = sc.nextInt();
        } int i = 0; int i = 0; i 0 i < a i a i++ i++ i {
            b[i] = sc.nextInt();
        } {
            b[i] = sc.nextInt();
        } b[i] = sc.nextInt() b[i] b i sc.nextInt() sc.nextInt sc for (int i = 0; i < a; i++) {
            c[i] = sc.nextInt();
        } int i = 0; int i = 0; i 0 i < a i a 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 < a; i++) {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        } int i = 0; int i = 0; i 0 i < a i a i++ i++ i {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        } {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        } if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            } b[i] - c[i]> 0 b[i] - c[i] b[i] b i c[i] c i 0 {
                sum += b[i]-c[i];
            } sum += b[i]-c[i] sum b[i]-c[i] b[i] b i c[i] c 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 a = sc.nextInt();
        int[] b = new int[a];
        int[] c = new int[a];
        int sum = 0;
        for (int i = 0; i < a; i++) {
            b[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            c[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        }
        System.out.println(sum);
    }
} public class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int[] b = new int[a];
        int[] c = new int[a];
        int sum = 0;
        for (int i = 0; i < a; i++) {
            b[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            c[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        }
        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 a = sc.nextInt();
        int[] b = new int[a];
        int[] c = new int[a];
        int sum = 0;
        for (int i = 0; i < a; i++) {
            b[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            c[i] = sc.nextInt();
        }
        for (int i = 0; i < a; i++) {
            if (b[i] - c[i]> 0) {
                sum += b[i]-c[i];
            }
        }
        System.out.println(sum);
    }
}