#!/usr/bin/env python
# coding: utf-8

# In[ ]:


t = int(input())
for i in range(t):
    n = int(input())
    a = list(map(int , input().split()))
    new = []
    for j in a:
        for k in a[a.index(j)+1:]:
            for l in a[a.index(k)+1:]:
                if l >= k+j:
                    new.extend([[a.index(j), a.index(k), a.index(l)]])
    if len(new) == 0:
        print(-1)
    else:
        print(new[0][0] , new[0][1], new[0][2])

