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();
    int[] sunuke = new int[n];
    for (int i = 0; i<k; i++) {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    }
    int ans = 0;
    for (int i : sunuke) {
      if (i==0) 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();
    int[] sunuke = new int[n];
    for (int i = 0; i<k; i++) {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    }
    int ans = 0;
    for (int i : sunuke) {
      if (i==0) 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();
    int[] sunuke = new int[n];
    for (int i = 0; i<k; i++) {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    }
    int ans = 0;
    for (int i : sunuke) {
      if (i==0) ans++;
    }
    System.out.println(ans);
  } main {
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    int k = sc.nextInt();
    int[] sunuke = new int[n];
    for (int i = 0; i<k; i++) {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    }
    int ans = 0;
    for (int i : sunuke) {
      if (i==0) 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 int[] sunuke = new int[n]; sunuke new int[n] n for (int i = 0; i<k; i++) {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    } 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++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    } {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    } int d = sc.nextInt(); d sc.nextInt() sc.nextInt sc for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      } int j = 0; int j = 0; j 0 j<d j d j++ j++ j {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      } {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      } int idx = sc.nextInt(); idx sc.nextInt() sc.nextInt sc sunuke[idx-1]+=1 sunuke[idx-1] sunuke idx-1 idx 1 1 int ans = 0; ans 0 for (int i : sunuke) {
      if (i==0) ans++;
    } int i sunuke {
      if (i==0) ans++;
    } {
      if (i==0) ans++;
    } if (i==0) ans++; i==0 i 0 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();
    int[] sunuke = new int[n];
    for (int i = 0; i<k; i++) {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    }
    int ans = 0;
    for (int i : sunuke) {
      if (i==0) 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();
    int[] sunuke = new int[n];
    for (int i = 0; i<k; i++) {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    }
    int ans = 0;
    for (int i : sunuke) {
      if (i==0) 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();
    int[] sunuke = new int[n];
    for (int i = 0; i<k; i++) {
      int d = sc.nextInt();
      for (int j = 0; j<d; j++) {
        int idx = sc.nextInt();
        sunuke[idx-1]+=1;
      }
    }
    int ans = 0;
    for (int i : sunuke) {
      if (i==0) ans++;
    }
    System.out.println(ans);
  }
}
