func_code_string: #include <bits/stdc++.h>   using namespace std;   string a, b;   int k;   int main() {     cin >> a;     k = 1;     if (a.size() % 2 == 0) {       while (k != a.size() + 1) {         if (k % 2 != 0) {           b += a[a.size() - k / 2 - 1];         } else {           b += a[k / 2 - 1];         }         k++;       }     } else {       while (k != a.size() + 1) {         if (k % 2 == 0) {           b += a[a.size() - k / 2];         } else {           b += a[k / 2];         }         k++;       }     }     reverse(b.begin(), b.end());     cout << b;   }   