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TRIAN - Type of triangle

Given lengths a, b and c of triangle's sides determine it's type.

Input

There is unknown number of tests. Each of them consists of one line in which appear three integers: a, b and c (all < 10000).

Output

For each test print one word:

  • right - if triangle is right
  • obtuse - if triangle is obtuse
  • acute - if triangle is acute
  • none - if there is no such a triangle

Example

Input:
1 1 10
3 4 5
2 3 4
7 7 7
Output:
none
right
obtuse
acute


Added by:Piotr Ką…kol
Date:2010-05-26
Time limit:3.303s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: NODEJS OBJC SCM qobi VB.NET

hide comments
2011-04-26 14:26:40 anonymous
Thank you.
2011-04-26 09:56:16 Piotr KÄ…kol
1 2 3
2011-04-25 13:39:53 anonymous
Could you please tell me for what input my solution #5010571 fails? Thank you.
2010-05-29 09:05:08 Piotr KÄ…kol
Thank You also. I see I should check the task before adding. ;-)
2010-05-28 11:30:09 Knight
The First Line
"Given lenghts a, b and c of triangle's sides determine it's type."
the spelling of length is wrong :P
2010-05-26 15:00:38 Piotr KÄ…kol
Thank You. I copied this part from another task and didn't change it. ;-)
2010-05-26 14:45:51 Jargon
"Each of them consists of one line in which appear two integers: a, b and c (all < 10000)."

There are three...
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