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 PHP (judge verdict: Accepted)

<?php
// Your code here!
    // $input_line = trim(fgets(STDIN));
    
    // $num = explode(" ",$input_line);
    
    // $W = intval($num[0]);
    // $H = intval($num[1]);
    // $x = intval($num[2]);
    // $y = intval($num[3]);
    // $r = intval($num[4]);
    
    $i=0;
    while($input_line = intval(trim(fgets(STDIN)))){
        $i++;
        if($input_line == 0){
            break;
        }
        echo "Case $i: $input_line";
        echo "\n";
    }
    

?>