using System;
public class Program
{
public static void Main()
bool flag=true;
int digit;
for(int i=0; i<10 ; i++)
int x= int.Parse(Console.ReadLine());
if(x>=10000)
flag =false;
break;
}
while(x>0)
digit = x%10;
if (digit != 2 && digit != 6 && digit != 9)
x=x/10;
if(flag)
Console.WriteLine("yes");
else
Console.WriteLine("no");