Problem:
Score : 100 points

Problem Statement

In some other world, today is December D-th.

Write a program that prints Christmas if D = 25, Christmas Eve if D = 24, Christmas Eve Eve if D = 23 and Christmas Eve Eve Eve if D = 22.

Constraints

22 \leq D \leq 25

D is an integer.

Input

Input is given from Standard Input in the following format:

D

Output

Print the specified string (case-sensitive).

Sample Input 1

25

Sample Output 1

Christmas

Sample Input 2

22

Sample Output 2

Christmas Eve Eve Eve

Be sure to print spaces between the words.

Solution in PHP (5.6.30) (judge verdict: Accepted)

<?php
# get a integer
fscanf(STDIN, "%d", $num);
$output = "";
if($num<=25 && $num>=22){
 $output = 'Christmas';
  for($i=$num;$i<25;$i++){
   $output = $output . " Eve"; 
  }

}
echo $output;
?>