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[] n = new int[N];

		for (int i = 0; i < K; i++){

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			}
		}

		int sum = 0;
		for (int sunu : n){
			if (!(sunu==1))
				sum ++;
		}

		System.out.println(sum);

	}

} 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[] n = new int[N];

		for (int i = 0; i < K; i++){

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			}
		}

		int sum = 0;
		for (int sunu : n){
			if (!(sunu==1))
				sum ++;
		}

		System.out.println(sum);

	}

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

		int N = sc.nextInt();
		int K = sc.nextInt();

		int[] n = new int[N];

		for (int i = 0; i < K; i++){

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			}
		}

		int sum = 0;
		for (int sunu : n){
			if (!(sunu==1))
				sum ++;
		}

		System.out.println(sum);

	} main {
		Scanner sc = new Scanner(System.in);

		int N = sc.nextInt();
		int K = sc.nextInt();

		int[] n = new int[N];

		for (int i = 0; i < K; i++){

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			}
		}

		int sum = 0;
		for (int sunu : n){
			if (!(sunu==1))
				sum ++;
		}

		System.out.println(sum);

	} 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[] n = new int[N]; n new int[N] N for (int i = 0; i < K; i++){

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 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 su = sc.nextInt() - 1;

				n[su] = 1;
			}
		} {

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			}
		} int d = sc.nextInt(); d sc.nextInt() sc.nextInt sc for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			} int j = 0; int j = 0; j 0 j < d j d j++ j++ j {

				int su = sc.nextInt() - 1;

				n[su] = 1;
			} {

				int su = sc.nextInt() - 1;

				n[su] = 1;
			} int su = sc.nextInt() - 1; su sc.nextInt() - 1 sc.nextInt() sc.nextInt sc 1 n[su] = 1 n[su] n su 1 int sum = 0; sum 0 for (int sunu : n){
			if (!(sunu==1))
				sum ++;
		} int sunu n {
			if (!(sunu==1))
				sum ++;
		} {
			if (!(sunu==1))
				sum ++;
		} if (!(sunu==1))
				sum ++; !(sunu==1) (sunu==1) sunu 1 sum ++ sum System.out.println(sum) System.out.println System.out System System.out sum 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[] n = new int[N];

		for (int i = 0; i < K; i++){

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			}
		}

		int sum = 0;
		for (int sunu : n){
			if (!(sunu==1))
				sum ++;
		}

		System.out.println(sum);

	}

} public class Main {

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

		int N = sc.nextInt();
		int K = sc.nextInt();

		int[] n = new int[N];

		for (int i = 0; i < K; i++){

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			}
		}

		int sum = 0;
		for (int sunu : n){
			if (!(sunu==1))
				sum ++;
		}

		System.out.println(sum);

	}

} 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[] n = new int[N];

		for (int i = 0; i < K; i++){

			int d = sc.nextInt();

			for (int j = 0; j < d; j++){

				int su = sc.nextInt() - 1;

				n[su] = 1;
			}
		}

		int sum = 0;
		for (int sunu : n){
			if (!(sunu==1))
				sum ++;
		}

		System.out.println(sum);

	}

}
