1021 Fibonacci Again

 1 #include<iostream>
 2 #include<stdio.h>
 3 using namespace std;
 4 int main()
 5 {
 6     int n;
 7     while(scanf("%d",&n)!=EOF)
 8     {
 9         if(n==0||n==1)
10         cout<<"no"<<endl;
11         else if((n-2)%4==0)
12         cout<<"yes"<<endl;
13         else 
14         cout<<"no"<<endl;
15     }
16     return 0;
17 }