题目描述
Problem Statement
Does $2^n \gt n^2$ hold?
Input
Input is given from Standard Input in the following format:
n
Output
If $2^n \gt n^2$, print Yes; otherwise, print No.
Constraints
- n is an integer between 1 and 10^9 (inclusive).
Sample Input 1
5
Sample Output 1
Yes
Since 2^5=32,\ 5^2=25, we have $2^n \gt n^2$, so Yes should be printed.
Sample Input 2
2
Sample Output 2
No
For n=2, we have 2^n=n^2=2^2, so $2^n \gt n^2$ does not hold. Thus, No should be printed.
Sample Input 3
623947744
Sample Output 3
Yes
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分
样例输入
5
样例输出
Yes