import java.lang.*;
import java.util.*;

class Main
{
  public static void main (String[] args) throws java.lang.Exception
  {
     Integer a,b,c=100;
     while(c-->0)
     {
         a=c*(c+1)*(c+2)%10000/10;
         b=c*(c+1)*(c+2)%10000/10;
         if(a==b)
           System.out.println("yes!");
         else
           System.out.println("no...");
     }
  }
}