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.NoSuchElementException;
import java.util.Scanner;

public class Main {
    private static int MAX = 10000;
    private static int MIN = 1;
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        try {
            int i = 1;
            while (sc.hasNext()) {
                int x = Integer.parseInt(sc.nextLine());
                if (x == 0) {
                    break;
                }
                if (x > MAX || x < MIN || i > MAX) {
                    System.out.println("Condition is invalid.");
                    return;
                }
                System.out.printf("Case %d: %d\n", i++, x);
            }
        } catch (NoSuchElementException
                | NumberFormatException e) {
            System.out.println(e);
        }
    }
}