Problem B: High School Problem[Easy]

## Problem B: High School Problem[Easy]

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 1043  Solved: 268
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## Description

Joy is a twelfth grade student who is aiming to go to SUSTech. One day, when he is doing math practices. He found a problem very hard. It gives a function goes like F(x) = 5x7+6x6+3x3+4x2-2xy (0 <= x <=100), y is a given real number. Can you help Joy find the minimum value of F(x) when x is in its domain?

## Input

The first line of the input contains an integer T (1 <= T <= 100)  which means the number of test cases. Then T lines follow, each line has only one real numbers Y (0 < Y < 1010).

## Output

For each case, print the case number as well as the minimum value (accurate up to 4 decimal places) in one line, when x is in its domain.

## Sample Input

3
100
200
300

## Sample Output

Case 1: -193.3774
Case 2: -448.1475
Case 3: -729.3383

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