func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     int x = 0;     int n;     cin >> n;     for (int i = 0; i < n; i++) {       string statement;       cin >> statement;       if (statement.find( + ) != std::string::npos) {         x += 1;       } else {         x -= 1;       }     }     cout << x << endl;   }   