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**BDesh** is a very peaceful country with a smaller population. Recently a **Spider Demon** with a dangerous kind of venom found in BDesh. Spider Demon pushed his venom into people’s veins and the people became spider-people. I know you are scared.

But don’t worry, BDesh has a very talented and furious health minister named * Zenitsu Agatsuma*. He has some psychic power, and using these powers

Ahh! people are relaxed now and cheering *Zenitsu*. But the people who already are a spider-people still haven't recovered. To change these spiders into people, Zenitsu tries psychic power again but fails. After a long time, *Zenitsu*’s friend named * Shinobu Kochu* came with the glorious news that she invented a vaccine to recover these people. Now it’s time to start the vaccination. The process lasted for $N$ days.

After starting the vaccination process it is observed that on i-th day if $a_i$spider-people come to take vaccine they can only vaccinate $X_i$ number of spider-people and get them fully recovered on that day where $X_i$ is the largest multiple of $K$ which less or equal to $a_i$ and the remaining become spider-people forever.

You’re given $N$ integers where $a_i$ is the number of spider-people who came to take the vaccine on i-th day. Your task is to **determine how many people become spider-people forever from not getting vaccinated if they vaccinate as many people as possible**.

The first line will be a single integer $T$ indicating the number of test cases. Each of the test cases will contain two integers $N$ and $K$. Then the next line will contain $N$integers $a_1, a_2, a_3,…,a_n$ the number of vaccinated people each day.

$1 \leq T \leq 10$

$1 \leq N, K \leq 100$

$1 \leq a_1, a_2, a_3,…,a_n\leq 1000$

You have to output $T$ lines in the format “**Case X: Y**”(without quotes) where $X$ is the number of test case and $Y$ is the total number of people who will become permanently spider-people.

Input | Output |
---|---|

2 5 4 5 100 1 12 15 3 1 13 22 1 | Case 1: 5 Case 2: 0 |

In the first case, on the first day, the maximum people who can get vaccine is $4$. On the second day, everyone can get vaccine as $100$ itself is a multiple $4$. On the third day, no one can get vaccine as the largest multiple of $4$ less than or equal to $1$ is $0$. On the fourth day, everyone can get vaccine as $12$ itself is a multiple of $4$. Finally, on the fifth day, only $12$ people can get vaccine as it is the largest multiple of $4$ less than or equal to $15$. |

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