2357: 又见斐波那契数列

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:5 Solved:3

Description

已知 f(0) = 7, f(1) = 11, f(n) = f(n-1) + f(n-2) (n>=2);
如果f(n)%3的值为0,则输出“yes”,否则输出“no”


Input

输入n

Output

输出第n项是否能被3整除,如果能输出yes,否则输出no

Sample Input Copy

2

Sample Output Copy

yes

Source/Category