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: Memory Limit Exceeded)

import java.util.Scanner;                                                               
 
class Main {
    public static void main(String[] args) {
            Scanner in = new Scanner(System.in);
            String str = new String();
            StringBuilder sb = new StringBuilder();
            int i =0 ;
            while(in.hasNext()) {
                        String buf = in.nextLine();
                    i++;
                    str = str + buf;
                    int j = Integer.parseInt(buf);
                    if (j == 0){
                    break;
                    }else{
                    sb.append("Case" + " " + i  + ":" + " " +  buf + "\n");
                    }

                    }
            System.out.print(sb);
        }
}