import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());
		int[] a = new int[n];
		for (int i = 0; i < k; i++) {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		}

		int ans = 0;
		for (int i = 0; i < n; i++) {
			if (a[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 = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());
		int[] a = new int[n];
		for (int i = 0; i < k; i++) {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		}

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

	}

} Main public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());
		int[] a = new int[n];
		for (int i = 0; i < k; i++) {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		}

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

	} main {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());
		int[] a = new int[n];
		for (int i = 0; i < k; i++) {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		}

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

	} Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int n = Integer.parseInt(sc.next()); n Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int k = Integer.parseInt(sc.next()); k Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int[] a = new int[n]; a new int[n] n for (int i = 0; i < k; i++) {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		} int i = 0; int i = 0; i 0 i < k i k i++ i++ i {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		} {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		} int d = Integer.parseInt(sc.next()); d Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			} int j = 0; int j = 0; j 0 j < d j d j++ j++ j {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			} {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			} int snack = Integer.parseInt(sc.next()); snack Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc a[snack - 1]++ a[snack - 1] a snack - 1 snack 1 int ans = 0; ans 0 for (int i = 0; i < n; i++) {
			if (a[i] == 0)
				ans++;
		} int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
			if (a[i] == 0)
				ans++;
		} {
			if (a[i] == 0)
				ans++;
		} if (a[i] == 0)
				ans++; a[i] == 0 a[i] a 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 = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());
		int[] a = new int[n];
		for (int i = 0; i < k; i++) {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		}

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

	}

} public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());
		int[] a = new int[n];
		for (int i = 0; i < k; i++) {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		}

		int ans = 0;
		for (int i = 0; i < n; i++) {
			if (a[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 = Integer.parseInt(sc.next());
		int k = Integer.parseInt(sc.next());
		int[] a = new int[n];
		for (int i = 0; i < k; i++) {
			int d = Integer.parseInt(sc.next());
			for (int j = 0; j < d; j++) {
				int snack = Integer.parseInt(sc.next());
				a[snack - 1]++;
			}
		}

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

	}

}
