## JDCC '16 Contest 3 P1 - Triangle Types

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Points: 3
Time limit: 2.0s
Memory limit: 64M

Author:
Problem type

Triangles can be described in many ways. One way to describe a triangle is by the equality between its angles/sides (equilateral, isosceles, scalene). Another way to describe a triangle is by the size of its largest angle (acute, right, obtuse).

These two descriptions can be combined as well! So a triangle with all three angles equaling 60 degrees is an acute equilateral triangle, and a triangle with one 100 degree angle and two 40 degree angles is an obtuse isosceles triangle.

Your job is to write a program that will describe a triangle given the size of its angles.

#### Input

Each test case contains three integers $$A, B, C\ (1 \le A, B, C \le 178)$$, the three angles of a triangle.

#### Output

Output the triangle’s description, starting with one of acute, right, obtuse, and ending with one of equilateral, isosceles, scalene.

#### Sample Input

60 60 60

#### Sample Output

acute equilateral

#### Sample Input

100 40 40

#### Sample Output

obtuse isosceles

#### Sample Input

90 89 1

#### Sample Output

right scalene