andrew-and-max

Max has a rectangular prism with dimensions A, B, and C. He writes A, B, and C on piece of paper. When he is not looking, Andrew replaces these numbers with X=A+B, Y=B+C, and Z=A+C. Now, Max sees three numbers X, Y, Z on the piece of paper. But Max needs help computing the surface area of this rectangular prism. Help him!

Input

First line contains T - number of test cases.

Each of next T lines contains 3 integers, X, Y, Z, in that order. It is guaranteed that numbers X, Y, Z are accurate and A, B, C form dimensions of a prism.

Output

Output surface area of each original prism in a new line. Round your answer to 2 decimal places.

Constraints

T ≤ 10

2 ≤ X, Y, Z ≤ 10^7

SAMPLE INPUT
2
3 4 5
2 2 2

SAMPLE OUTPUT
22.00
6.00

Explanation

The first test case is a prism with sides 1, 2, 3. The second test case is a cube of side 1. The surface area of the first prism is then 1x2+2x3+1x3+1x2+2x3+1x3=22, and the surface area of the 2nd prism is 6.

Source: hackerearth | Difficulty: EASY
Tags: Mathematics

Ad-hoc


Solutions: