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 JavaScript (node.js v5.12) (judge verdict: Wrong Answer)

const input = require('fs').readFileSync('/dev/stdin', 'utf8');

const output;

if(output === '25') {
  output = 'Christmas';
} else if(output === '24') {
  output = 'Christmas Eve';
} else if(output === '23') {
  output = 'Christmas Eve Eve';
} else if(output === '22') {
  output = 'Christmas Eve Eve Eve';
} else {
  output = null;
}

console.log(output);