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 s[] = new int[n];

		for(int i = 0; i < k; i++ ) {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		}

		int ans = 0;
		for(int i = 0; i < n; i++) {
			if(s[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();
		int s[] = new int[n];

		for(int i = 0; i < k; i++ ) {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		}

		int ans = 0;
		for(int i = 0; i < n; i++) {
			if(s[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();
		int s[] = new int[n];

		for(int i = 0; i < k; i++ ) {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		}

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

		for(int i = 0; i < k; i++ ) {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		}

		int ans = 0;
		for(int i = 0; i < n; i++) {
			if(s[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 int s[] = new int[n]; s new int[n] n for(int i = 0; i < k; i++ ) {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 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 tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		} {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		} int d = sc.nextInt(); d sc.nextInt() sc.nextInt sc for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			} int j = 0; int j = 0; j 0 j < d j d j++ j++ j {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			} {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			} int tmp = sc.nextInt(); tmp sc.nextInt() sc.nextInt sc s[tmp - 1] = 1 s[tmp - 1] s tmp - 1 tmp 1 1 int ans = 0; ans 0 for(int i = 0; i < n; i++) {
			if(s[i] == 0) {
				ans += 1;
			}
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			if(s[i] == 0) {
				ans += 1;
			}
		} {
			if(s[i] == 0) {
				ans += 1;
			}
		} if(s[i] == 0) {
				ans += 1;
			} s[i] == 0 s[i] s 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();
		int s[] = new int[n];

		for(int i = 0; i < k; i++ ) {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		}

		int ans = 0;
		for(int i = 0; i < n; i++) {
			if(s[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();
		int s[] = new int[n];

		for(int i = 0; i < k; i++ ) {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		}

		int ans = 0;
		for(int i = 0; i < n; i++) {
			if(s[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();
		int s[] = new int[n];

		for(int i = 0; i < k; i++ ) {
			int d = sc.nextInt();
			for(int j = 0; j < d; j++) {
				int tmp = sc.nextInt();
				s[tmp - 1] = 1;
			}
		}

		int ans = 0;
		for(int i = 0; i < n; i++) {
			if(s[i] == 0) {
				ans += 1;
			}
		}
		System.out.println(ans);
	}
}
