import java.util.*;

class Main {
	public static void main(String[] args) {
        //ArrayList<Integer> array = new ArrayList<Integer>();
		Scanner sc = new Scanner(System.in);
        int N = sc.nextInt();
        int K = sc.nextInt();
        int ans[] = new int[N+1];
        int sum = 0;
        for(int i=0; i<K; i++) {
            int d = sc.nextInt();
            int[] A = new int[d];
            for(int j=0;j<d; j++) {
                A[j] = sc.nextInt();
                ans[A[j]]++;
            }
            //array.add(A[i]);
        }
        //System.out.println(N-array.size());
        for(int i=1;i<N+1;i++) {
            if(ans[i] == 0) sum++;
        }
        System.out.println(sum);
	}
}
/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