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 JAVA (judge verdict: Accepted)

import java.util.Scanner;
public class Main {
	public static void main(String[] args) {
// 標準入力からデータを読み込む準備
		Scanner sc = new Scanner(System.in);
// 最初の文字の固まりを整数値と想定して読み込む
 		for (int i = 1; ; i++) {
			int x = sc.nextInt();
// xが0の時を考慮した上で、 Case i: x の形式で出力しよう!
			if(x==0){
				break;
			}else{
				System.out.println("Case "+i+": "+x);
			}
		} 
	}
}