1# you require like no knowledge of topics like
2# enumerate, binary search, sorted
3
4n = int(input())
5
6for _ in range(n):
7 m = int(input())
8 arrn = int(input())
9 arr = list(map(int, input().split()))
10 for i in range(len(arr)):
11 for j in range(i, len(arr)):
12 if arr[i] + arr[j] == m:
13 if i != j:
14 print(i+1, j+1)
15 break
16# after going through various concepts
17# i coded out this simple soulution which was the easiest thing
18# and realized that it was quite easy than i thought
19