
import java.util.Map.Entry;
import java.util.*;
 
import org.w3c.dom.css.Counter;
 
public class Main {
//public class App {
 
    public static void main(final String[] args){
     //スキャン
     final Scanner s = new Scanner(System.in);
     final int N = Integer.parseInt(s.next());
     final int K = Integer.parseInt(s.next());
     HashSet<String> hashSet = new HashSet<String>();

     for(int i=0; i< K;i++){
        int di = Integer.parseInt(s.next());
        String blank = s.nextLine();
        String huge = s.nextLine();

        String[] hage = huge.split(" ",0);
        int hageN= hage.length;
        for (int num =0;num<hageN;num++){
            if(!hashSet.contains(hage[num])){
                hashSet.add(hage[num]);
            }
        }

     }
     s.close();

     System.out.println(N-hashSet.size());
}
}
/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