func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, m, i, j, T, ti;   long long MX = 4294967295;   long long temp;   long long loop(int n) {     long long ret = 0;     string str;     int rn;     cin >> str;     m--;     while (str !=  end ) {       if (str ==  add ) {         ret++;       } else if (str ==  for ) {         cin >> rn;         temp = loop(rn);         if (temp == -1) break;         ret += temp;       } else {         cerr <<  WOW   << str << endl;       }       if (m == 0) break;       cin >> str;       m--;     }     if (temp == -1) return -1;     if (ret * n > MX) {       return -1;     }     return ret * n;   }   int main() {     ios::sync_with_stdio(false);     cin >> m;     temp = 0;     temp = loop(1);     if (temp == -1) {       cout <<  OVERFLOW!!!  << endl;     } else {       cout << temp << endl;     }     return 0;   }   