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Given a stream of numbers, print average or mean of the stream at every point.

Input:

The first line of input contains an integer T denoting the number of test cases.
The first line of each test case is N,N is the size of array.
The second line of each test case contains N input C[i].

Output:

Print the average of the stream at every point (in integer).

Constraints:

1 ≤ T ≤ 20
1 ≤ N ≤ 50
1 ≤ C[i] ≤ 100

Example:

Input
2
5
10 20 30 40 50
2
12 2

Output
10 15 20 25 30
12 7

 

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