import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;

public class Main {
	public static void main(String[] args) throws IOException {
		//		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		//		String W	 = in.readLine();
		//		int num = Integer.parseInt(W.split(" ")[0]);

		Scanner sc = new Scanner(System.in);
		final int N = sc.nextInt();
		final int K = sc.nextInt();

		int[] A = new int[N + 1];
		int[] d = new int[K];
		Arrays.fill(A, 0);
		A[0]=100;

		for (int i = 0; i < K; i++) {
			d[i] = sc.nextInt();
			for (int j =0; j < d[i]; j++) {
				A[sc.nextInt()]++;
			}
		}
		int ans = 0;
		for (int i = 1; i <= N; i++) {
			if (A[i] == 0) {
				ans++;
			}
		}
		System.out.println(ans);

	}

	//	//二分探索
	//k <= num となる最小の配列要素kのインデックスを返す
	static private int binarySearch(long num, long[] orderedArray) {
		int lowerBorder = -1;
		int upperBorder = orderedArray.length;
		int mid;

		while (upperBorder - lowerBorder > 1) {
			mid = (upperBorder + lowerBorder) / 2;
			if (orderedArray[mid] <= num) {
				lowerBorder = mid;
			} else {
				upperBorder = mid;
			}
		}
		return lowerBorder;
	}

	//二分探索
	//k <= num となる最小のList要素kのインデックスを返す
	static private int binarySearch(long num, ArrayList<Long> orderedList) {
		int lowerBorder = -1;
		int upperBorder = orderedList.size();
		int mid;

		while (upperBorder - lowerBorder > 1) {
			mid = (upperBorder + lowerBorder) / 2;
			if (orderedList.get(mid) <= num) {
				lowerBorder = mid;
			} else {
				upperBorder = mid;
			}
		}
		return lowerBorder;
	}

	//aとbの最小公倍数を求める
	public static int gcd(int a, int b) {
		return b == 0 ? a : gcd(b, a % b);
	}

	public static long gcd(long a, long b) {
		return b == 0 ? a : gcd(b, a % b);
	}

}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz