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: Accepted)

"use strict";
process.stdin.resume();
process.stdin.setEncoding('utf8');

var reader = require('readline').createInterface({
  input: process.stdin,
  output: process.stdout
});
reader.on('line', (line) => {
    let d = line;
    let diff = 25 - d;
    let ans = "Christmas";
    
    for (let i = 0; i < diff; i++) {
      ans += " Eve"
    }

    console.log(ans);
});