import java.util.*;

class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);

    int allSunuke = sc.nextInt();
    int snackKind = sc.nextInt();

    int[] list = new int[allSunuke];
    for (int i = 0; i < snackKind; i++) {
      int d = sc.nextInt();
      for (int j = 0; j < d; j++) {
        int sunukeNumber = sc.nextInt();
        list[sunukeNumber - 1]++;
      }
    }

    int count = 0;

    for (int i = 0; i < list.length; i++) {
      if (list[i] == 0) {
        count++;
      }
    }

    System.out.println(count);

    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