#include <bits/stdc++.h>
using namespace std;
int dx[] = {-1, 0, 0, 1};
int dy[] = {0, -1, 1, 0};
int dx1[] = {-1, -1, -1, 0, 0, 0, 1, 1, 1};
int dy1[] = {-1, 0, 1, -1, 0, 1, -1, 0, 1};
const double eps = 1e-9;
const int inf = 2000000000;
const long long int infLL = 9000000000000000000;
const long long int MOD = 1e+7;
const double PI = 3.141592653589793238462643383279;
int main() {
  ios_base ::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n, m;
  cin >> n >> m;
  int ans = 2 * n - m + 1;
  for (long long int i = 0; i < m; i++) {
    int k;
    cin >> k;
    for (long long int j = 0; j < k; j++) {
      int a;
      cin >> a;
      if (a == j + 1) ans -= 2;
    }
  }
  cout << ans << endl;
  return 0;
}
