import java.util.Scanner;

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

        int n = sc.nextInt();
        int kind = sc.nextInt();
        int[] di = new int[kind];

        int[] count = new int[n];
        for(int i = 0; i<n; i++){
            count[i] = 0;
        }

        for(int i = 0; i<kind; i++){
            di[i] = sc.nextInt();
            for(int j = 0; j<di[i]; j++){
                count[sc.nextInt() - 1]++;
            }
        }

        int trickCount = 0;
        for(int i = 0; i<n; i++){
            if(count[i] == 0){
                trickCount++;
            }
        }

        System.out.println(trickCount);
    }
}
/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