import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int N = sc.nextInt(); //住人
        int K = sc.nextInt(); //菓子の種類
        ArrayList<Integer> array = new ArrayList<>();
        for(int i = 0; i < K; i++){
          int a = sc.nextInt();
          for(int j = 0; j < a; j++){
            int num = sc.nextInt();
            if(!array.contains(num))
              array.add(num);
          }
        }
        System.out.println(N-array.size());
        //System.out.println(array);
    }
}
/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