Help me in solving ATBO problem

help
,
1

My issue

There is a 9th test case which was not there in the contest ans my solution fails on the 9th test case help needed

My code

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

#define fastio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define int long long int
#define double long double
#define MAX LLONG_MAX
#define MIN LLONG_MIN
#define endl '\n'
#define vin(a) for(int i=0;i<(a).size();i++)cin>>a[i];
#define vout(a) for(int i=0;i<a.size();i++)cout<<a[i]<<' ';cout<<endl;
#define cout(x) cout<<setprecision(20)<<x<<endl

const int M = 1e9+7;
const int N = 1e5+10;

void precalc(){}

void solve(){
	int n;
	cin >> n;
	vector<int> v(n);
	vector<int> ans(n);
	vin(v);
	vin(ans);
	for(int i=0 ; i<n-3 ; i++){
	    if(v[i]!=ans[i]){
	       int a = v[i+3];
    	   int b = v[i+2];
    	   int c = v[i+1];
    	   int d = v[i];
    	   v[i]=b+c+d;
    	   v[i+1]=b*-1;
    	   v[i+2]=c*-1;
    	   v[i+3]=a+b+c;
	    }
	    if(v[i]!=ans[i]){
	        cout << "NO" << endl;
	        return;
	    }
	}
	for(int i=0;i<n;i++){
        if(v[i]!=ans[i]){
            cout << "NO" << endl;
            return;
        }
    }
	cout << "YES" << endl;
}

int32_t main(){
	fastio();
	precalc();
	int t;
	cin >> t;
	while(t--){
		solve();
	}
	return 0;
}

Problem Link: Operating on A Practice Coding Problem - CodeChef