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 Go (judge verdict: Accepted)

package main

import (
	"fmt"
)

func main(){
	var s[] int
	var x int
	for {
		fmt.Scan(&x)
		s = append(s, x)
		if x == 0 {
			s = s[:len(s) - 1]
			break;
		}	
	}

	for i, v := range s {
		fmt.Printf("Case %d: %d\n", i + 1, v)
	}
}