//package beginner166.b;

import java.io.*;
import java.util.StringTokenizer;

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 k = in.nextInt();

            int[] ss = new int[n];

            for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            }

            int result = 0;
            for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            }

            out.println(result);
        }
    }

    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.*; io.* java import java.util.StringTokenizer; StringTokenizer java.util 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 k = in.nextInt();

            int[] ss = new int[n];

            for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            }

            int result = 0;
            for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            }

            out.println(result);
        }
    }

    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 k = in.nextInt();

            int[] ss = new int[n];

            for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            }

            int result = 0;
            for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            }

            out.println(result);
        }
    } TaskB public void solve(int testNumber, InputReader in, PrintWriter out) {
            int n = in.nextInt();
            int k = in.nextInt();

            int[] ss = new int[n];

            for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            }

            int result = 0;
            for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            }

            out.println(result);
        } solve {
            int n = in.nextInt();
            int k = in.nextInt();

            int[] ss = new int[n];

            for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            }

            int result = 0;
            for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            }

            out.println(result);
        } int n = in.nextInt(); n in.nextInt() in.nextInt in int k = in.nextInt(); k in.nextInt() in.nextInt in int[] ss = new int[n]; ss new int[n] n for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            } int i = 0; int i = 0; i 0 i < k i k ++i ++i i {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            } {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            } int cnt = in.nextInt(); cnt in.nextInt() in.nextInt in for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                } int j = 0; int j = 0; j 0 j < cnt j cnt ++j ++j j {
                    ss[in.nextInt()-1] += 1;
                } {
                    ss[in.nextInt()-1] += 1;
                } ss[in.nextInt()-1] += 1 ss[in.nextInt()-1] ss in.nextInt()-1 in.nextInt() in.nextInt in 1 1 int result = 0; result 0 for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            } int i = 0; int i = 0; i 0 i < n i n ++i ++i i {
                if (ss[i] == 0) {
                    ++result;
                }
            } {
                if (ss[i] == 0) {
                    ++result;
                }
            } if (ss[i] == 0) {
                    ++result;
                } ss[i] == 0 ss[i] ss i 0 {
                    ++result;
                } ++result result out.println(result) out.println out result 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 k = in.nextInt();

            int[] ss = new int[n];

            for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            }

            int result = 0;
            for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            }

            out.println(result);
        }
    }

    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 k = in.nextInt();

            int[] ss = new int[n];

            for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            }

            int result = 0;
            for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            }

            out.println(result);
        }
    }

    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
//package beginner166.b;

import java.io.*;
import java.util.StringTokenizer;

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 k = in.nextInt();

            int[] ss = new int[n];

            for (int i = 0; i < k; ++i) {
                int cnt = in.nextInt();
                for (int j = 0; j < cnt; ++j) {
                    ss[in.nextInt()-1] += 1;
                }
            }

            int result = 0;
            for (int i = 0; i < n; ++i) {
                if (ss[i] == 0) {
                    ++result;
                }
            }

            out.println(result);
        }
    }

    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());
        }

    }
}