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 12.16.1) (judge verdict: Accepted)

'use strict';

function main(arg) {
  const input = arg.trim().split('\n');
  const d = Number(input[0]);
  const diff = 25 - d;
  let ans = 'Christmas';
  if (diff > 0) {
    ans = ans + ' Eve'.repeat(diff);
  }
  console.log(ans);
}

main(require('fs').readFileSync('/dev/stdin', 'utf8'));