Problem:
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.

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.

Constraints

1 ≤ x ≤ 10000

The number of datasets ≤ 10000

Sample Input

3
5
11
7
8
19
0

Sample Output

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

Solution in C# (judge verdict: WA: Presentation Error)

using System;

class main
{
    public static int Main()
    {

        string x = Console.ReadLine();


        int i = 0;
        int y = 0;
        while (i == 0)
        {

            if (x == "0")
            {
                i = 1;
            }
            else
            {
                Console.WriteLine("Case {0}:{1}", y+1, x);
                y = y + 1;
                x = Console.ReadLine();
            }

        }

            return 0;

    }
}