import java.util.*;

 // Compiler version JDK 11.0.2

  public class Main
 {
   public static void main(String args[])
   { 
     Scanner sc= new Scanner(System.in);
     int n =sc.nextInt();
     int a[]=new int[n+1];
     int k =sc.nextInt();
     while(k>0)
     {
       int d = sc.nextInt();
       for(int i=0;i<d;i++)
       {
         int b= sc.nextInt();
         a[b]++;
         
       }
       k--;
     }
     int t=0;
     for(int i =1;i<=n;i++)
     {
       if(a[i]==0)
       t++;
     }
     System.out.println(t);
   }
 }
    
/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