import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner s = new Scanner(System.in);
        final int N = s.nextInt();
        final int K = s.nextInt();
        Set nSet = new HashSet();
        int[] kHoji;

        // 菓子の種類ループ
        for (int i = 0 ; i < K ; i++) {
            // 菓子の個数入力
            int kNum = s.nextInt();
            kHoji = new int[kNum];
            for (int j = 0 ; j < kHoji.length ; j++) {
                nSet.add(s.nextInt());
            }
            // System.out.println(i);
        }
        System.out.println(N - nSet.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