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.
输入解释
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).