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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int result = 0;
        for (int i = 0; i < n; i++) {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        }
        System.out.println(result);
        sc.close();
    }
} 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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int result = 0;
        for (int i = 0; i < n; i++) {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        }
        System.out.println(result);
        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 result = 0;
        for (int i = 0; i < n; i++) {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        }
        System.out.println(result);
        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 result = 0;
        for (int i = 0; i < n; i++) {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        }
        System.out.println(result);
        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 result = 0; result 0 for (int i = 0; i < n; i++) {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        } {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        } int dif = v[i] - c[i]; dif v[i] - c[i] v[i] v i c[i] c i if (dif >= 0) {
                result += dif;
            } dif >= 0 dif 0 {
                result += dif;
            } result += dif result dif System.out.println(result) System.out.println System.out System System.out result 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 result = 0;
        for (int i = 0; i < n; i++) {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        }
        System.out.println(result);
        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 result = 0;
        for (int i = 0; i < n; i++) {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        }
        System.out.println(result);
        sc.close();
    }
} 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];
        for (int i = 0; i < n; i++) {
            v[i] = sc.nextInt();
        }
        for (int i = 0; i < n; i++) {
            c[i] = sc.nextInt();
        }
        int result = 0;
        for (int i = 0; i < n; i++) {
            int dif = v[i] - c[i];
            if (dif >= 0) {
                result += dif;
            }
        }
        System.out.println(result);
        sc.close();
    }
}