# Just A Triangle

Time Limit: 2000/1000 MS (Java/Others)

Memory Limit: 32768/32768 K (Java/Others)

## 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

lcy

## Source

HDU 2009-11 Programming Contest