题目描述
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-----
25
-----Sample Output-----
Christmas
输入格式
见题面
输出格式
见题面
样例输入
25
样例输出
Christmas