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'
function Main(input) {
  const ar = input.split("\n").map(x => x.split(" "));
  const num = Number(ar[0]);

  const rep = 25 - num;
  console.log("Christmas" + " Eve".repeat(rep));
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));