Minimum Even Perimeter

Given the dimensions of one or more rectangular fields, your task is to compute the minimum even perimeter for each field. The perimeter of a rectangle is given by

\(2(L + W)\),

where \(L\) is the length and \(W\) is the width. Since this formula always produces an even number for any integers \(L\) and \(W\), simply output \(2(L + W)\) for each test case.

inputFormat

The input begins with an integer \(T\) denoting the number of test cases. Each of the following \(T\) lines contains two space-separated integers \(L\) and \(W\) representing the length and the width of a rectangular field respectively.

outputFormat

For each test case, output a single line containing the even perimeter computed as \(2(L + W)\).

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