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 C++ (judge verdict: Accepted)

    #include <bits/stdc++.h>
    #define rep(i,n) for(int i = 0; i < (n); i++)
     
    using namespace std;  
    
    int main() {
    int count = 1;
    
     while(true){
     int x;
     cin >> x;
     
     if(x!=0){
      cout << "Case " << count <<": "<< x << '\n';
      count++;
      } else{
      
       return 0;
      
      }
      
     }
     return 0;
    }