Identifying Temperature Spikes

You are given multiple test cases. In each test case, an integer N and a list of N integers representing the temperatures on consecutive days are provided. A day is considered to have a sudden spike if its temperature is at least 5 degrees higher than that of the previous day. Note that the first day is not considered since it has no preceding day.

Your task is to find and output the 1-indexed positions of the days with sudden spikes. If no day satisfies the condition, output None.

The spike condition can be expressed in LaTeX as follows:

$$ T_i \geq T_{i-1} + 5 $$

inputFormat

The input begins with an integer T (T > 0) indicating the number of test cases. Each test case consists of two lines. The first line contains an integer N (the number of days). The second line contains N space-separated integers representing the temperatures.

outputFormat

For each test case, output a single line containing the 1-indexed positions of the days where a temperature spike occurs, separated by spaces. If no day meets the condition for a test case, output None.

## sample

7
5
10 15 20 13 18
3
10 15 10
4
5 5 5 5
2
1 6
3
1 2 7
6
1 2 7 12 1 6
4
10 10 15 25

2 3 5
2
None
2
3
3 4 6
3 4

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