def lateralsurface_cone(r,h):
  import math
  
  l = math.sqrt(r * r + h * h)
  LSA = math.pi * r  * l
  return LSA
def is_not_prime(n):
    import math
    
    result = False
    for i in range(2,int(math.sqrt(n)) + 1):
        if n % i == 0:
            result = True
    return result