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: Accepted)

using System;
//using System.Collections.Generic;
class Untitled
{
	static void Main(string[] args)
	{
		bool parsed = false;
		string s;
		int index = 1;
		// List <int> list = new List <int> ();
		while (!String.IsNullOrEmpty (s = Console.ReadLine())) {
			int i = 0;
			parsed = Int32.TryParse (s, out i);
			if (parsed && i != 0) {
			//  	list.Add (i);
			Console.WriteLine ("Case " + index + ": " + i); 
			} else {
				break;
			}
			index++;
		}
//		for (int i = 0; i < list.Count; i++) {
		//	Console.WriteLine ("Case " + i + ": " + list [i]); 
//		}
	}
}