#include<iostream>
using namespace std;
int main()
{
    int t;
    cin>>t;
    while(t--)
    {
      int Xa,Ya,Xb,Yb,Xf,Yf,sum;
     cin>>Xa>>Ya>>Xb>>Yb>>Xf>>Yf;
     sum=abs(Xa-Xb)+abs(Ya-Yb);
     if(Xa==Xb&&Xb==Xf)
        {
          if(Ya<Yf&&Yb>Yf||Ya>Yf&&Yb<Yf)
            sum+=2;
        }
    if(Ya==Yb&&Yb==Yf)
    {
        if(Xa<Xf&&Xb>Xf||Xa>Xf&&Xb<Xf)
        sum+=2;
    }
     cout<<sum<<endl;
    }
  return 0;
}
