func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     map<long long, long long> isolados;     long long n, k, i, j, prox, qtd, x, resp;     bool first = true;     while (cin >> n >> k) {       resp = 0;       isolados.clear();       prox = -1;       first = true;       for (i = 0; i < k; i++) {         cin >> qtd;         for (j = 0; j < qtd; j++) {           cin >> x;           if (x == 1) prox = 1;           if (x == prox && first == true) {             prox++;           } else if (j == 0) {             isolados[x] = 0;           } else {             isolados[x] = 1;           }         }         if (prox != -1) first = false;       }       for (prox; prox <= n; prox++) {         resp += isolados[prox] + 1;       }       cout << resp << endl;     }     return 0;   }   