func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int a, b, aa, bb;     cin >> a >> b;     a += 100;     b += 100;     cin >> aa >> bb;     aa += 100;     bb += 100;     if (aa != a && bb != b) {       int tmp = (abs(a - aa));       int tmp2 = (abs(b - bb));       cout << 2 * abs(tmp2 + tmp) + 4;     } else       cout << max(8, (6 + (abs(a - aa) + abs(b - bb)) * 2));     return 0;   }   