101740: [AtCoder]ABC174 A - Air Conditioner
Memory Limit：256 MB
Time Limit：2 S
Judge Style：Text Compare
Creator：
Submit：1
Solved：0
Description
Score : $100$ points
Problem Statement
You will turn on the air conditioner if, and only if, the temperature of the room is $30$ degrees Celsius or above.
The current temperature of the room is $X$ degrees Celsius. Will you turn on the air conditioner?
Constraints
- $-40 \leq X \leq 40$
- $X$ is an integer.
Input
Input is given from Standard Input in the following format:
$X$
Output
Print Yes if you will turn on the air conditioner; print No otherwise.
Sample Input 1
25
Sample Output 1
No
Sample Input 2
30
Sample Output 2
Yes