There are multiple test cases, terminated by a line "0 0".

For each test case, the only one line contains two integers x,k(1<=x<=10^10, 1<=k<=10^10).

内存限制：64 MiB 时间限制：1 Sec

Teacher Mai has an integer x.

He does the following operations k times. In the i-th operation, x becomes the least integer no less than x, which is the multiple of i.

He wants to know what is the number x now.

There are multiple test cases, terminated by a line "0 0".

For each test case, the only one line contains two integers x,k(1<=x<=10^10, 1<=k<=10^10).

For each test case, output one line "Case #k: x", where k is the case number counting from 1.

```
2520 10
```

2520 20

0 0

```
Case #1: 2520
```

Case #2: 2600