#include <bits/stdc++.h>
using namespace std;
template <typename Arg1>
void __f(const char* name, Arg1&& arg1) {
  cout << name << " : " << arg1 << '\n';
}
template <typename Arg1, typename... Args>
void __f(const char* names, Arg1&& arg1, Args&&... args) {
  const char* comma = strchr(names + 1, ',');
  cout.write(names, comma - names) << " : " << arg1 << " | ";
  __f(comma + 1, args...);
}
int inf = 0x3f3f3f3f;
long long infl = 0x3f3f3f3f3f3f3f3fLL;
long double infd = 1.0 / 0.0;
const long long MOD = 1e9 + 7;
const long double pi = 2 * acos(0.0);
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  ;
  int n, k;
  cin >> n >> k;
  int cnt = 0;
  int time = 0;
  for (int i = 0; i < k; i++) {
    int m;
    cin >> m;
    int f = 0;
    for (int j = 0; j < m; j++) {
      int x;
      cin >> x;
      if (x == j + 1 && f == 0)
        cnt++;
      else
        f = 1;
      if (f && j > 0) time++;
    }
  }
  cout << n - cnt + time;
  return 0;
}
