import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

/**
 * 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;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int[] v = new int[n];
            int[] c = new int[n];
            for (int i = 0; i < n; i++)
                v[i] = in.nextInt();
            for (int i = 0; i < n; i++)
                c[i] = in.nextInt();
            int max = 0;
            for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            }
            out.println(max);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

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

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int[] v = new int[n];
            int[] c = new int[n];
            for (int i = 0; i < n; i++)
                v[i] = in.nextInt();
            for (int i = 0; i < n; i++)
                c[i] = in.nextInt();
            int max = 0;
            for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            }
            out.println(max);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    }
} Main public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    } main {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        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 InputReader in = new InputReader(inputStream); in new InputReader(inputStream) PrintWriter out = new PrintWriter(outputStream); out new PrintWriter(outputStream) TaskB solver = new TaskB(); solver new TaskB() solver.solve(1, in, out) solver.solve solver 1 in out out.close() out.close out String[] args args static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int[] v = new int[n];
            int[] c = new int[n];
            for (int i = 0; i < n; i++)
                v[i] = in.nextInt();
            for (int i = 0; i < n; i++)
                c[i] = in.nextInt();
            int max = 0;
            for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            }
            out.println(max);
        }

    } TaskB public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int[] v = new int[n];
            int[] c = new int[n];
            for (int i = 0; i < n; i++)
                v[i] = in.nextInt();
            for (int i = 0; i < n; i++)
                c[i] = in.nextInt();
            int max = 0;
            for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            }
            out.println(max);
        } solve {
            int n = in.nextInt();
            int[] v = new int[n];
            int[] c = new int[n];
            for (int i = 0; i < n; i++)
                v[i] = in.nextInt();
            for (int i = 0; i < n; i++)
                c[i] = in.nextInt();
            int max = 0;
            for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            }
            out.println(max);
        } int n = in.nextInt(); n in.nextInt() in.nextInt in 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] = 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] 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] c i in.nextInt() in.nextInt in int max = 0; max 0 for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            } int i = 0, lim = 1 << n; int i = 0 i 0 lim = 1 << n; lim 1 << n 1 n i < lim i lim i++ i++ i {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            } {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            } int x = 0 x 0 y = 0; y 0 for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    } int j = 0; int j = 0; j 0 j < n j n j++ j++ j if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    } if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    } (i & (1 << j)) > 0 (i & (1 << j)) i (1 << j) 1 j 0 {
                        x += v[j];
                        y += c[j];
                    } x += v[j] x v[j] v j y += c[j] y c[j] c j max = Math.max(max, x - y) max Math.max(max, x - y) Math.max Math max x - y x y out.println(max) out.println out max int testNumber testNumber InputReader in in PrintWriter out out static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    } InputReader public BufferedReader reader; reader public StringTokenizer tokenizer; tokenizer public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        } InputReader {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        } reader = new BufferedReader(new InputStreamReader(stream), 32768) reader new BufferedReader(new InputStreamReader(stream), 32768) tokenizer = null tokenizer null InputStream stream stream public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        } next {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        } while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            } tokenizer == null || !tokenizer.hasMoreTokens() tokenizer == null tokenizer null !tokenizer.hasMoreTokens() tokenizer.hasMoreTokens() tokenizer.hasMoreTokens tokenizer {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            } try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                } IOException e {
                    throw new RuntimeException(e);
                } throw new RuntimeException(e); new RuntimeException(e) {
                    tokenizer = new StringTokenizer(reader.readLine());
                } tokenizer = new StringTokenizer(reader.readLine()) tokenizer new StringTokenizer(reader.readLine()) return tokenizer.nextToken(); tokenizer.nextToken() tokenizer.nextToken tokenizer public int nextInt() {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int[] v = new int[n];
            int[] c = new int[n];
            for (int i = 0; i < n; i++)
                v[i] = in.nextInt();
            for (int i = 0; i < n; i++)
                c[i] = in.nextInt();
            int max = 0;
            for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            }
            out.println(max);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

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

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int[] v = new int[n];
            int[] c = new int[n];
            for (int i = 0; i < n; i++)
                v[i] = in.nextInt();
            for (int i = 0; i < n; i++)
                c[i] = in.nextInt();
            int max = 0;
            for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            }
            out.println(max);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    }
} Main
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

/**
 * 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;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        TaskB solver = new TaskB();
        solver.solve(1, in, out);
        out.close();
    }

    static class TaskB {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int[] v = new int[n];
            int[] c = new int[n];
            for (int i = 0; i < n; i++)
                v[i] = in.nextInt();
            for (int i = 0; i < n; i++)
                c[i] = in.nextInt();
            int max = 0;
            for (int i = 0, lim = 1 << n; i < lim; i++) {
                int x = 0, y = 0;
                for (int j = 0; j < n; j++)
                    if ((i & (1 << j)) > 0) {
                        x += v[j];
                        y += c[j];
                    }
                max = Math.max(max, x - y);
            }
            out.println(max);
        }

    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    }
}

