102380: [AtCoder]ABC238 A - Exponential or Quadratic

Problem Statement

Does $2^n \gt n^2$ hold?

Constraints

• $n$ is an integer between $1$ and $10^9$ (inclusive).

Input

Input is given from Standard Input in the following format:

$n$

Output

If $2^n \gt n^2$, print Yes; otherwise, print No.

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

问题描述

是否存在$2^n \gt n^2$的情况？

限制条件

• $n$是一个介于1和$10^9$（含）之间的整数。

输入

从标准输入以以下格式获取输入：

$n$

输出

如果$2^n \gt n^2$，打印Yes；否则，打印No。

样例输入1

5

样例输出1

Yes

因为$2^5=32,\ 5^2=25$，我们有$2^n \gt n^2$，所以应该打印Yes。

样例输入2

2

样例输出2

No

对于$n=2$，我们有$2^n=n^2=2^2$，所以$2^n \gt n^2$不成立。因此，应该打印No。

样例输入3

623947744

样例输出3

Yes