Print Test Cases

In the online judge system, a judge file may include multiple datasets to check whether the submitted program outputs a correct answer for each test case. This task is to practice solving a problem with multiple datasets.

Write a program which reads an integer x and print it as is. Note that multiple datasets are given for this problem.

Constraints

• 1 ≤ x ≤ 10000
• The number of datasets ≤ 10000

Input

The input consists of multiple datasets. Each dataset consists of an integer x in a line.

The input ends with an integer 0. You program should not process (print) for this terminal symbol.

Output

For each dataset, print x in the following format:

Case i: x

where i is the case number which starts with 1. Put a single space between "Case" and i. Also, put a single space between ':' and x.

Example

Input

3 5 11 7 8 19 0

Output

Case 1: 3 Case 2: 5 Case 3: 11 Case 4: 7 Case 5: 8 Case 6: 19

inputFormat

outputFormat

outputs a correct answer for each test case. This task is to practice solving a problem with multiple datasets.

Write a program which reads an integer x and print it as is. Note that multiple datasets are given for this problem.

Constraints

• 1 ≤ x ≤ 10000
• The number of datasets ≤ 10000

Input

The input consists of multiple datasets. Each dataset consists of an integer x in a line.

The input ends with an integer 0. You program should not process (print) for this terminal symbol.

Output

For each dataset, print x in the following format:

Case i: x

where i is the case number which starts with 1. Put a single space between "Case" and i. Also, put a single space between ':' and x.

Example

Input

3 5 11 7 8 19 0

Output

Case 1: 3 Case 2: 5 Case 3: 11 Case 4: 7 Case 5: 8 Case 6: 19

样例

3
5
11
7
8
19
0

Case 1: 3
Case 2: 5
Case 3: 11
Case 4: 7
Case 5: 8
Case 6: 19

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