func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int ans = 0, n;     string s;     cin >> n;     for (int i = 1; i <= n; i++) {       cin >> s;       int flag = 0;       for (int i = 0; i < s.length(); i++)         if (s[i] ==  + ) flag = 1;       if (flag)         ans += 1;       else         ans -= 1;     }     cout << ans;   }   