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

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

}
/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