nonboringsequences

Problem Description

We were afraid of making this problem statement too boring, so we decided to keep it short. A sequence is called non-boring if its every connected subsequence contains a unique element, i.e. an element such that no other element of that subsequence has the same value. Given a sequence of integers, decide whether it is non-boring.

Input

The first line of the input contains the number of test cases T. The descriptions of the test cases follow:

Each test case starts with an integer N (1 ≤ N ≤ 200000) denoting the length of the sequence. In the next line the N elements of the sequence follow, X_i, separated with single spaces.

Output

Print the answers to the test cases in the order in which they appear in the input. For each test case print a single line containing the word non-boring or boring.

Limits

For all subtasks: 1 ≤ T ≤ 5, 1 ≤ N ≤ 200000, 0 ≤ X_i ≤ 10⁹

Subtask 1 (9%): 1 ≤ N ≤ 100, 0 ≤ X_i ≤ 10⁶

Subtask 2 (42%): 1 ≤ N ≤ 1000, 0 ≤ X_i ≤ 10⁶

Subtask 3 (49%): No additional contraints

Subtask 4 (0%): Sample Testcases

Sample Input 1

4
5
1 2 3 4 5
5
1 1 1 1 1
5
1 2 3 2 1
5
1 1 2 1 1

Sample Output 1

non-boring
boring
non-boring
boring