You are given the lengths for each side on a triangle.
You need to find all three angles for this triangle.
If the given side lengths cannot form a triangle (or form a degenerated triangle),
then you must return all angles as 0 (zero).
The angles should be represented as a list of integers in **ascending order**.
Each angle is measured in degrees and rounded to the nearest integer number (Standard mathematical rounding).

**Input: ** The lengths of the sides of a triangle as integers.

**Output: ** Angles of a triangle in degrees as sorted list of integers.

**Example:**

checkio(4, 4, 4) == [60, 60, 60] checkio(3, 4, 5) == [37, 53, 90] checkio(2, 2, 5) == [0, 0, 0]

**How it is used: **
This is a classical geometric task. The ideas can be useful in topography and architecture.
With this concept you can measure an angle without the need for a protractor.

**Precondition: **

0 < a,b,c ≤ 1000