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) {
    let D = input.split("\n").map((v) => v - 0)[0];
    if (D == 25) console.log("Christmas");
    else if (D == 24) console.log("Christmas Eve");
    else if (D == 23) console.log("Christmas Eve Eve");
    else if (D == 22) console.log("Christmas Eve Eve Eve");
}
Main(require("fs").readFileSync("/dev/stdin", "utf8"));