func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int t;     cin >> t;     while (t--) {       int a, b, x, y;       cin >> a >> b >> x >> y;       if (a == x || b == y) {         cout << abs(x - a) + abs(b - y) <<   n ;         goto v;       } else         cout << abs(a - x) + abs(b - y) + 2 <<   n ;     v:;     }   }   