import java.util.*;
 
public class Main {
  public static void main(String args[]){
    Scanner sc = new Scanner(System.in);
    int N = sc.nextInt();
    int K = sc.nextInt();
    int[] l = new int[N];
    int ans = 0;
    for (int i = 0; i < K; i++) {
      int d = sc.nextInt();
      for (int j = 0; j < d; j++) {
          int a = sc.nextInt();
          l[a-1]++;
      }
    }
    
    for (int k = 0; k < N; k++) {
      if (l[k] == 0) {
        ans += 1;
      }
    }
    System.out.println(ans);
  }
}  
/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