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 Kotlin (1.0.0) (judge verdict: Accepted)

import java.util.*
fun main(args: Array<String>) {

    val D = readLine()!!.split(" ").map{it.toInt()}[0]
    println(
    when (D) {
        22-> "Christmas Eve Eve Eve"
        23-> "Christmas Eve Eve"
        24-> "Christmas Eve"
        25-> "Christmas"
        else-> "err"
    }
    )
}