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.io.IOException;
import java.io.InputStreamReader;
import java.io.* ;
 
class Main{
  public static void main(String[] args)throws IOException{
      
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); // ??\?????????
       String str = br.readLine();  //???????????????
       int r = Integer.parseInt(str); //???????????°?????????
  	   int i = 1;
  	while ( r != 0 ) {  
  		System.out.println(  "Case " + i + ": " + r);
 		i++;
        str = br.readLine();  //???????????????
        r = Integer.parseInt(str); //???????????°?????????
  	
  	}	
  		
  	}
  }