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 JavaScript (judge verdict: Wrong Answer)

var i=1;
var data = '';
function output() {
  var j = data.lastIndexOf( '\n' );
  if( -1 < j ) {
    var nums;
    if( j == data.length-1 ) {
      nums = data.split( '\n' );
      data = '';
    } else {
      nums = data.substring( 0, j ).split( '\n' );
      data = data.substring( j+1 );
    }
    j=0;
    for( j=0; j<nums.length-1; j++ ) {
      if( 0 != nums[j] ) {
        console.log( 'Case '+i+': '+nums[j] );
        i++;
      }  
    }
  }  
}
var readable = process.stdin;
readable.resume();
readable.setEncoding( 'utf-8' );
readable.on( 'data', function( chunk ) {
  data += chunk;
  output();
});
readable.on( 'end', function() {
  output();
});