import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
	
		Scanner sc = new Scanner(System.in);
		int N = Integer.parseInt(sc.nextLine().split(" ")[0]);
		boolean[] hasSnack = new boolean[N];
		
		while (sc.hasNextLine()) {
			sc.nextLine();
			for (String snk : sc.nextLine().split(" ")) {
              int snki = Integer.parseInt(snk) - 1;
              if (hasSnack[snki])
              	continue;
              N--;
			  hasSnack[snki] = true;
            }
		}
		
		System.out.println(N);
	
	}

}
/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