#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    long int q,k=1,l,c;
    cin>>q;
    while(k--)
    {
        cin>>l>>c;
        cout<<4<<" "<<2<<" "<<1<<" "<<3<<" "<<5<<endl;
        cout<<-1<<endl;
    }
    return 0;
}