题目描述
Snuke is giving cookies to his three goats.
He has two cookie tins. One contains A cookies, and the other contains B cookies. He can thus give A cookies, B cookies or A+B cookies to his goats (he cannot open the tins).
Your task is to determine whether Snuke can give cookies to his three goats so that each of them can have the same number of cookies.
Constraints
- $1 \leq A,B \leq 100$
- Both A and B are integers.
Input
Input is given from Standard Input in the following format:
A B
Output
If it is possible to give cookies so that each of the three goats can have the same number of cookies, print Possible; otherwise, print Impossible.
Examples
Input
4 5
Output
Possible
Input
1 1
Output
Impossible
输入格式
见题面
输出格式
见题面
样例输入
4 5
样例输出
Possible