

import java.util.Scanner;

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

        // 人数
        int n = sc.nextInt();
        // 種類
        int k = sc.nextInt();

        boolean[] sunuke = new boolean[n];

        for (int i = 0; i < k; i++) {
            int jmax = sc.nextInt();
            for (int j = 0; j < jmax; j++) {
                sunuke[sc.nextInt() - 1] = true;
            }
        }

        int ans = 0;

        for (boolean isTrue : sunuke) {
            if (isTrue)
                ans++;
        }
        System.out.println(n - ans);
        sc.close();
    }
}
/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