func_code_string: #define rep(i,n) for(int i=0;i<(int)(n);i++)   #define ALL(v) v.begin(),v.end()   typedef long long ll;       #include<bits/stdc++.h>   using namespace std;       int main(){     ios::sync_with_stdio(false);     std::cin.tie(nullptr);          int t;     cin>>t;     while(t--){       int xa,ya,xb,yb,xf,yf;       cin>>xa>>ya>>xb>>yb>>xf>>yf;              if(xa==xb && xf==xa && (yf-ya)*(yf-yb)<0) cout<<abs(ya-yb)+2<<endl;       else if(ya==yb && yf==ya && (xf-xa)*(xf-xb)<0) cout<<abs(xa-xb)+2<<endl;       else cout<<abs(xa-xb)+abs(ya-yb)<<endl;                                 }                      return 0;   }