import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        B solver = new B();
        solver.solve(1, in, out);
        out.close();
    }

    static class B {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = in.nextInt();
            int[] C = new int[N];
            int[] V = new int[N];

            int sum = 0;
            for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            }
            out.println(sum);
        }

    }
}
 import java.io.OutputStream; OutputStream java.io import java.io.IOException; IOException java.io import java.io.InputStream; InputStream java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        B solver = new B();
        solver.solve(1, in, out);
        out.close();
    }

    static class B {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = in.nextInt();
            int[] C = new int[N];
            int[] V = new int[N];

            int sum = 0;
            for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            }
            out.println(sum);
        }

    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        B solver = new B();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        B solver = new B();
        solver.solve(1, in, out);
        out.close();
    } InputStream inputStream = System.in; inputStream System.in System System.in OutputStream outputStream = System.out; outputStream System.out System System.out Scanner in = new Scanner(inputStream); in new Scanner(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) B solver = new B(); solver new B() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class B {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = in.nextInt();
            int[] C = new int[N];
            int[] V = new int[N];

            int sum = 0;
            for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            }
            out.println(sum);
        }

    } B public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = in.nextInt();
            int[] C = new int[N];
            int[] V = new int[N];

            int sum = 0;
            for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            }
            out.println(sum);
        } solve {
            int N = in.nextInt();
            int[] C = new int[N];
            int[] V = new int[N];

            int sum = 0;
            for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            }
            out.println(sum);
        } int N = in.nextInt(); N in.nextInt() in.nextInt in int[] C = new int[N]; C new int[N] N int[] V = new int[N]; V new int[N] N int sum = 0; sum 0 for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
                V[i] = in.nextInt();
            } {
                V[i] = in.nextInt();
            } V[i] = in.nextInt() V[i] V i in.nextInt() in.nextInt in for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
                C[i] = in.nextInt();
            } {
                C[i] = in.nextInt();
            } C[i] = in.nextInt() C[i] C i in.nextInt() in.nextInt in for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            } int i = 0; int i = 0; i 0 i < N i N i++ i++ i {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            } {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            } int diff = V[i] - C[i]; diff V[i] - C[i] V[i] V i C[i] C i if (diff > 0) {
                    sum += diff;
                } diff > 0 diff 0 {
                    sum += diff;
                } sum += diff sum diff out.println(sum) out.println out sum int testNumber testNumber Scanner in in PrintWriter out out public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        B solver = new B();
        solver.solve(1, in, out);
        out.close();
    }

    static class B {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = in.nextInt();
            int[] C = new int[N];
            int[] V = new int[N];

            int sum = 0;
            for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            }
            out.println(sum);
        }

    }
} public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        B solver = new B();
        solver.solve(1, in, out);
        out.close();
    }

    static class B {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = in.nextInt();
            int[] C = new int[N];
            int[] V = new int[N];

            int sum = 0;
            for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            }
            out.println(sum);
        }

    }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Scanner;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */
public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        B solver = new B();
        solver.solve(1, in, out);
        out.close();
    }

    static class B {
        public void solve(int testNumber, Scanner in, PrintWriter out) {
            int N = in.nextInt();
            int[] C = new int[N];
            int[] V = new int[N];

            int sum = 0;
            for (int i = 0; i < N; i++) {
                V[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                C[i] = in.nextInt();
            }
            for (int i = 0; i < N; i++) {
                int diff = V[i] - C[i];
                if (diff > 0) {
                    sum += diff;
                }
            }
            out.println(sum);
        }

    }
}

