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