#include <bits/stdc++.h>
int n, k, m, c, arr[100005], ans;
inline void check() {
  int i = 0;
  while (i < m) {
    if (arr[i] == i + 1)
      i++;
    else
      break;
  }
  if (i)
    c += (m - i + 1), ans += (m - i);
  else
    c += m, ans += (m - 1);
}
int main() {
  scanf("%d %d", &n, &k);
  ans = c = 0;
  while (k--) {
    scanf("%d", &m);
    for (int i = 0; i < m; ++i) scanf("%d", &arr[i]);
    check();
  }
  ans += (c - 1);
  printf("%d", ans);
  return 0;
}
