new_contents: import math
  
  def checkio(a, b, c):
      angles = [0, 0, 0]
  
      # check if valid triangle
      if a + b <= c:
          return angles
      if a + c <= b:
          return angles
      if b + c <= a:
          return angles
      
      angles[0] = int(round((math.degrees(math.acos((b**2 + c**2 - a**2) / (2.0 * b * c))))))
      angles[1] = int(round((math.degrees(math.acos((a**2 + c**2 - b**2) / (2.0 * a * c))))))
      angles[2] = 180 - (angles[0] + angles[1])
      angles.sort()
      return angles
  
subject: Create mySolution.py