1547A.cpp

#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define mp make_pair
#define all(x) (x).begin(), (x).end()
#define fo(i,n) for(int i = 0; i < n; i++)
#define _ ios_base::sync_with_stdio(0);cin.tie(0);
#define endl '\n'

void solve(){
    pair<int,int>a,f,b;
    cin >> a.first>>a.second;
    cin >>b.first>>b.second;
    cin >>f.first>>f.second;
    if(a.first==b.first ){
        if(f.first==a.first){
            if(f.second<min(a.second,b.second)||f.second>max(a.second,b.second))cout<<abs(a.second-b.second)<<endl;
            else cout<<abs(a.second-b.second)+2<<endl;
        }else cout<<abs(a.second-b.second)<<endl;
    }else if(a.second==b.second){
        if(f.second==a.second){
            if(f.first<min(a.first,b.first)||f.first>max(a.first,b.first))cout<<abs(a.first-b.first)<<endl;
            else cout<<abs(a.first-b.first)+2<<endl;
        }else cout<<abs(a.first-b.first)<<endl;
    }else{
        cout<<abs(a.second-b.second)+abs(a.first-b.first)<<endl;
    }
        

}

int main() {_
    int t;cin >> t;
    while(t--)solve();
    return 0;
}