4880: 又是二十五!

内存限制:256 MB 时间限制:2 S 标准输入输出
题目类型:传统 评测方式:文本比较 上传者:
提交:8 通过:5

题目描述

人力资源经理再次感到失望。最后一位申请人的面试失败了,和之前24位申请人的面试方式一样。"我是不是给了个太难的任务?- 人力资源经理想。"有这样一个数字为5的n次方,求出数字的最后两位数。是的,当然,n可能相当大,而且不能用计算器,但我们需要的是能够思考的人,而不仅仅是按照指令行事的人。"
你能通过IT城的机器视觉公司的面试吗?


The HR manager was disappointed again. The last applicant failed the interview the same way as 24 previous ones. "Do I give such a hard task?" − the HR manager thought. "Just raise number 5 to the power of n and get last two digits of the number. Yes, of course, n can be rather big, and one cannot find the power using a calculator, but we need people who are able to think, not just follow the instructions."
Could you pass the interview in the machine vision company in IT City?
Input
The only line of the input contains a single integer n (2≤n≤2·1018) − the power in which you need to raise number 5.
Output
Output the last two digits of 5n without spaces between them.
Examples
Input
2
Output
25

输入格式

输入的唯一一行包含一个整数n(2≤n≤2·1018)--5的n次方中的n。

输出格式

输出5的n次方的最后两位数字,中间没有空格。

输入样例 复制

2

输出样例 复制

25