import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        boolean[] sunuke = new boolean[n];
        for (int i=0;i<k;i++){
            int d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        }
        int ans = 0;
        for (int i=0;i<n;i++)if (!sunuke[i])ans++;
        System.out.println(ans);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        boolean[] sunuke = new boolean[n];
        for (int i=0;i<k;i++){
            int d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        }
        int ans = 0;
        for (int i=0;i<n;i++)if (!sunuke[i])ans++;
        System.out.println(ans);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        boolean[] sunuke = new boolean[n];
        for (int i=0;i<k;i++){
            int d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        }
        int ans = 0;
        for (int i=0;i<n;i++)if (!sunuke[i])ans++;
        System.out.println(ans);
    } main {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        boolean[] sunuke = new boolean[n];
        for (int i=0;i<k;i++){
            int d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        }
        int ans = 0;
        for (int i=0;i<n;i++)if (!sunuke[i])ans++;
        System.out.println(ans);
    } 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 d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        } int i=0; int i=0; i 0 i<k i k i++ i++ i {
            int d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        } {
            int d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        } int d = sc.nextInt(); d sc.nextInt() sc.nextInt sc for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            } int j=0; int j=0; j 0 j<d j d 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 (int i=0;i<n;i++)if (!sunuke[i])ans++; int i=0; int i=0; i 0 i<n i n i++ i++ i if (!sunuke[i])ans++; if (!sunuke[i])ans++; !sunuke[i] sunuke[i] sunuke i ans++ ans System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        boolean[] sunuke = new boolean[n];
        for (int i=0;i<k;i++){
            int d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        }
        int ans = 0;
        for (int i=0;i<n;i++)if (!sunuke[i])ans++;
        System.out.println(ans);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        boolean[] sunuke = new boolean[n];
        for (int i=0;i<k;i++){
            int d = sc.nextInt();
            for (int j=0;j<d;j++){
                sunuke[sc.nextInt()-1]=true;
            }
        }
        int ans = 0;
        for (int i=0;i<n;i++)if (!sunuke[i])ans++;
        System.out.println(ans);
    }
} Main
import java.util.Scanner;

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