Problem C: Advanced Mathematics Problem

Problem C: Advanced Mathematics Problem

Time Limit: 1 Sec  Memory Limit: 128 MB  Special Judge
Submit: 746  Solved: 308
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Description

Given F(x) = xex/20 - b, (x ϵ R, e is a constant approximately equal to 2.718281828459, also known as Euler number , b is a given integer).

Please find the zero point of F(x) .

Input

The 1st line is a positive integer \(T(1⩽ T ⩽ 1000)\) which is the number of test cases.

Then \(T\) lines follow. Each line has an integer \(b(1⩽ b ⩽ 10^8)\) for a test case.

Output

Output \(T\) lines. Each line contains a number \(ans\)(accurate up to 10 decimal places), representing the approximate zero point of \(F(x)\) and \(|F(ans) | < 0.01\).

Sample Input

2
1
20

Sample Output

0.9448242188
11.3433837891

HINT

This Problem use special judge, so the sample output is not the only answer.

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