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 PHP7 (7.0.15) (judge verdict: Accepted)

<?php
$x = fgets(STDIN);

echo "Christmas";

if ($x == 24) {
    echo " Eve";
} elseif ($x == 23) {
    echo " Eve Eve";
} elseif ($x == 22) {
    echo " Eve Eve Eve";
}