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[] have = new int[n];
      	int a, d;
      	for(int i = 0; i < k; i++){
        	d = sc.nextInt();
          	for(int j = 0; j < d; j++){
            	a = sc.nextInt();
              	have[a-1]++;
            }
        }
      	int count = 0;
      	for(int i = 0; i < n; i++){
        	if(have[i] == 0) count++;
        }
      	System.out.println(count++);
    }
}
/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