func_code_string: #include <bits/stdc++.h>   using namespace std;   long long x, maxi = 0, sum = 0;   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     cout.tie(NULL);     int x;     cin >> x;     int one = 0, zero = 0;     string s;     cin >> s;     for (int i = 0; i < x; i++) {       if (s[i] -  0  == 1)         one++;       else         zero++;     }     cout << abs(one - zero);   }   