Fibonacci Again

Problem Description

There are another kind of Fibonacci numbers: F(0) = 7, F(1) = 11, F(n) = F(n-1) + F(n-2) (n>=2).

 

 

Input

Input consists of a sequence of lines, each containing an integer n. (n < 1,000,000).

 

 

Output

Print the word "yes" if 3 divide evenly into F(n).

Print the word "no" if not.

 

 

Sample Input

  
  

   
   0
1
2
3
4
5
  
  

 

 

Sample Output

  
  

   
   no
no
yes
no
no
no
  
  

 

 

Author

Leojay

 

 

Recommend

JGShining

答案：

找规律。。。

int main()
{
 int n;

 while (scanf("%d", &n) != EOF)
 {
  if (n < 0)
   break;
  if (n == 0 || n == 1)
   printf("no/n");
  else
  {
   if ((n-2)%4 == 0)
    printf("yes/n");
   else
    printf("no/n");  
  }
 }
 
 return 0;
}