// package app;

import java.math.BigDecimal;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.Scanner;
import java.util.StringJoiner;
import java.util.stream.Stream;

public class Main {

    public static void main(final String[] args) throws Exception {

        Scanner sc = new Scanner(System.in);

        // String S = sc.next();
        // long u = sc.nextLong();

        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 benefit = 0;
        for (int i = 0; i < N; i++) {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        }

        System.out.println(benefit);
    }
} import java.math.BigDecimal; BigDecimal java.math import java.util.Arrays; Arrays java.util import java.util.HashMap; HashMap java.util import java.util.Map; Map java.util import java.util.Objects; Objects java.util import java.util.Scanner; Scanner java.util import java.util.StringJoiner; StringJoiner java.util import java.util.stream.Stream; Stream java.util.stream public class Main {

    public static void main(final String[] args) throws Exception {

        Scanner sc = new Scanner(System.in);

        // String S = sc.next();
        // long u = sc.nextLong();

        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 benefit = 0;
        for (int i = 0; i < N; i++) {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        }

        System.out.println(benefit);
    }
} Main public static void main(final String[] args) throws Exception {

        Scanner sc = new Scanner(System.in);

        // String S = sc.next();
        // long u = sc.nextLong();

        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 benefit = 0;
        for (int i = 0; i < N; i++) {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        }

        System.out.println(benefit);
    } main {

        Scanner sc = new Scanner(System.in);

        // String S = sc.next();
        // long u = sc.nextLong();

        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 benefit = 0;
        for (int i = 0; i < N; i++) {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        }

        System.out.println(benefit);
    } 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 benefit = 0; benefit 0 for (int i = 0; i < N; i++) {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        } {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        } if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            } V[i] > C[i] V[i] V i C[i] C i {
                benefit += V[i] - C[i];
            } benefit += V[i] - C[i] benefit V[i] - C[i] V[i] V i C[i] C i System.out.println(benefit) System.out.println System.out System System.out benefit final String[] args args public class Main {

    public static void main(final String[] args) throws Exception {

        Scanner sc = new Scanner(System.in);

        // String S = sc.next();
        // long u = sc.nextLong();

        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 benefit = 0;
        for (int i = 0; i < N; i++) {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        }

        System.out.println(benefit);
    }
} public class Main {

    public static void main(final String[] args) throws Exception {

        Scanner sc = new Scanner(System.in);

        // String S = sc.next();
        // long u = sc.nextLong();

        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 benefit = 0;
        for (int i = 0; i < N; i++) {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        }

        System.out.println(benefit);
    }
} Main
// package app;

import java.math.BigDecimal;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.Scanner;
import java.util.StringJoiner;
import java.util.stream.Stream;

public class Main {

    public static void main(final String[] args) throws Exception {

        Scanner sc = new Scanner(System.in);

        // String S = sc.next();
        // long u = sc.nextLong();

        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 benefit = 0;
        for (int i = 0; i < N; i++) {
            if (V[i] > C[i]) {
                benefit += V[i] - C[i];
            }
        }

        System.out.println(benefit);
    }
}