#include <iostream>

using namespace std;

int main()
{
	int t;
	cin >> t;
	while (t--)
	{
		int n;
		cin >> n;
		if (n<=4)
		{
			cout<<-1<<'\n';
		} else
		{
			int val = 1;
			for (int i = 0;i<n;i++)
			{
				cout << val << " ";
				if (val+3 == n)
					val=n;
				else
					val = (val+3)%n;
			}
		}
	}
}