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CF1605A.M. Deviation
M. Deviation
A number is said to be the arithmetic mean of two numbers and , if the following condition holds: .
We define an arithmetic mean deviation of three numbers , and as follows: .
Arithmetic means a lot to Jeevan. He has three numbers , and and he wants to minimize the arithmetic mean deviation . To do so, he can perform the following operation any number of times (possibly zero):
- Choose from such that and increment by and decrement by
Help Jeevan find out the minimum value of that can be obtained after applying the operation any number of times.
Input
The first line contains a single integer — the number of test cases.
The first and only line of each test case contains three integers , and .
Output
For each test case, output the minimum value of that can be obtained after applying the operation any number of times.
Note
Note that after applying a few operations, the values of , and may become negative.
In the first test case, is already the Arithmetic Mean of and .
In the second test case, we can apply the following operation:
\xrightarrow[\text{incrementa_2}]{\text{decrementa_1}}
It can be proven that answer can not be improved any further.
In the third test case, we can apply the following operations:
\xrightarrow[\text{incrementa_3}]{\text{decrementa_2}} \xrightarrow[\text{incrementa_1}]{\text{decrementa_2}}
Samples
3
3 4 5
2 2 6
1 6 5
0
1
0
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