

import java.util.Scanner;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);

        // 人数
        int n = sc.nextInt();
        // 種類
        int k = sc.nextInt();

        boolean[] sunuke = new boolean[n];

        for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        }

        int ans = 0;

        for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        }
        System.out.println(n - ans);
        sc.close();
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);

        // 人数
        int n = sc.nextInt();
        // 種類
        int k = sc.nextInt();

        boolean[] sunuke = new boolean[n];

        for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        }

        int ans = 0;

        for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        }
        System.out.println(n - ans);
        sc.close();
    }
} Main public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);

        // 人数
        int n = sc.nextInt();
        // 種類
        int k = sc.nextInt();

        boolean[] sunuke = new boolean[n];

        for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        }

        int ans = 0;

        for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        }
        System.out.println(n - ans);
        sc.close();
    } main {
        Scanner sc = new Scanner(System.in);

        // 人数
        int n = sc.nextInt();
        // 種類
        int k = sc.nextInt();

        boolean[] sunuke = new boolean[n];

        for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        }

        int ans = 0;

        for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        }
        System.out.println(n - ans);
        sc.close();
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int k = sc.nextInt(); k sc.nextInt() sc.nextInt sc boolean[] sunuke = new boolean[n]; sunuke new boolean[n] n for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        } int i = 0; int i = 0; i 0 i < k i k i++ i++ i {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        } {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        } int jmax = sc.nextInt(); jmax sc.nextInt() sc.nextInt sc for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            } int j = 0; int j = 0; j 0 j < jmax j jmax j++ j++ j {
                sunuke[sc.nextInt() - 1] = true;
            } {
                sunuke[sc.nextInt() - 1] = true;
            } sunuke[sc.nextInt() - 1] = true sunuke[sc.nextInt() - 1] sunuke sc.nextInt() - 1 sc.nextInt() sc.nextInt sc 1 true int ans = 0; ans 0 for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        } boolean isTrue sunuke {
            if (isTrue)
                ans++;
        } {
            if (isTrue)
                ans++;
        } if (isTrue)
                ans++; isTrue ans++ ans System.out.println(n - ans) System.out.println System.out System System.out n - ans n ans sc.close() sc.close sc String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);

        // 人数
        int n = sc.nextInt();
        // 種類
        int k = sc.nextInt();

        boolean[] sunuke = new boolean[n];

        for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        }

        int ans = 0;

        for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        }
        System.out.println(n - ans);
        sc.close();
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);

        // 人数
        int n = sc.nextInt();
        // 種類
        int k = sc.nextInt();

        boolean[] sunuke = new boolean[n];

        for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        }

        int ans = 0;

        for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        }
        System.out.println(n - ans);
        sc.close();
    }
} Main


import java.util.Scanner;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);

        // 人数
        int n = sc.nextInt();
        // 種類
        int k = sc.nextInt();

        boolean[] sunuke = new boolean[n];

        for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        }

        int ans = 0;

        for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        }
        System.out.println(n - ans);
        sc.close();
    }
}