using System;
public class Program
{
public static void Main()
int c=0,b;
bool flag=false;
b=int.Parse(Console.ReadLine());
if (b==9)
c=c+1;
}
while (b!=0)
if (b!=9)
c=0;
else
if (c==3)
flag=true;
if (flag==true)
Console.WriteLine("yes");
if (flag==false)
Console.WriteLine("no");