Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)

Total Submission(s): 2862    Accepted Submission(s): 2028

Problem Description

  This is an easy problem, just for you to warm up.

  Give you three edges of a triangle. Can you tell me which kind of triangle it stands for?

If it’s a right triangle(直角三角形), please output “good”. If it’s a isosceles triangle(等腰三角形), please output “perfect”. Otherwise, please output “just a triangle”. You may suppose the input is legal.

Input

The first line contains an integer t means the number of test cases.

The each case contains three integers a, b, c in a line which stands for the length of the three edges.

(0 <a, b, c < 300).

Output

For each case, output the answer in one line.

Sample Input

4 3 4 5 2 2 3 1 4 4 4 6 3

Sample Output

good perfect perfect just a triangle

Source

问题链接：。

问题简述：参见上文。

问题分析：（略）

程序说明：（略）

题记：（略）

AC的C++语言程序如下：

/* HDU3188 Just A Triangle */#include 
    
     using namespace std;int main(){    int t, a, b, c;    cin >> t;    while(t--) {        cin >> a >> b >> c;        if(a == b || b == c || a == c)            cout << "perfect" << endl;        else if(a * a + b * b == c * c || b * b + c * c == a * a || a * a + c * c == b * b)            cout << "good" << endl;        else            cout << "just a triangle" << endl;    }    return 0;}