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)

namespace Test
{
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;

    public class Test
    {
        public static void Main(string[] args)
        {
            var t = new Test();
            var list = new List<int>();
            t.MakeList(list);
            t.LoopPrint(list, 0);
        }

        public void MakeList(List<int> list)
        {
            var input = this.ReadInputOneLine();
            if (input == 0)
            {
                return;
            }
            list.Add(input);
            MakeList(list);
        }

        public void LoopPrint(List<int> list, int i)
        {
            if (i == list.Count)
            {
                return;
            }
            Console.WriteLine("Case " + ++i + ": " + list[i - 1]);
            LoopPrint(list, i);
        }


        public int ReadInputOneLine()
        {
            return int.Parse(Console.ReadLine());
        }
}
}