import java.util.Scanner;


public class T2012 {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner sc=new Scanner(System.in);
        int f=sc.nextInt();
        int r=12-f;
        int time=r*45;
        if(time<=240)
            System.out.println("YES");
        else
            System.out.println("NO");

    }

}

n >= 7 ? "YES" : "NO"
:)

for python
a=int(input())
question=12
time=240
tasks_left=question-a
if tasks_left*45<=240:
    print('true')
else:
    print('false')