


'''simple docstring'''

from math import pi, sqrt, tan





def lowerCamelCase      (      lowerCAmelCase    :     float		):





	"""simple docstring"""







	if side_length < 0:
		raise ValueError('surface_area_cube() only accepts non-negative values'		)
	return 6 * side_length**2





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if length < 0 or breadth < 0 or height < 0:
		raise ValueError('surface_area_cuboid() only accepts non-negative values'		)
	return 2 * ((length * breadth) + (breadth * height) + (length * height))





def lowerCamelCase      (      lowerCAmelCase    :     float		):





	"""simple docstring"""







	if radius < 0:
		raise ValueError('surface_area_sphere() only accepts non-negative values'		)
	return 4 * pi * radius**2





def lowerCamelCase      (      lowerCAmelCase    :     float		):





	"""simple docstring"""







	if radius < 0:
		raise ValueError('surface_area_hemisphere() only accepts non-negative values'		)
	return 3 * pi * radius**2





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if radius < 0 or height < 0:
		raise ValueError('surface_area_cone() only accepts non-negative values'		)
	return pi * radius * (radius + (height**2 + radius**2) ** 0.5)





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if radius_a < 0 or radius_a < 0 or height < 0:
		raise ValueError(
		    'surface_area_conical_frustum() only accepts non-negative values'		)
	__magic_name__	:   Dict					     =					(height**2 + (radius_a - radius_a) ** 2) ** 0.5
	return pi * ((slant_height * (radius_a + radius_a)) + radius_a**2 + radius_a**2)





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if radius < 0 or height < 0:
		raise ValueError('surface_area_cylinder() only accepts non-negative values'		)
	return 2 * pi * radius * (height + radius)





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if torus_radius < 0 or tube_radius < 0:
		raise ValueError('surface_area_torus() only accepts non-negative values'		)
	if torus_radius < tube_radius:
		raise ValueError(
		    'surface_area_torus() does not support spindle or self intersecting tori'		)
	return 4 * pow(lowerCAmelCase		,		2		) * torus_radius * tube_radius





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if length < 0 or width < 0:
		raise ValueError('area_rectangle() only accepts non-negative values'		)
	return length * width





def lowerCamelCase      (      lowerCAmelCase    :     float		):





	"""simple docstring"""







	if side_length < 0:
		raise ValueError('area_square() only accepts non-negative values'		)
	return side_length**2





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if base < 0 or height < 0:
		raise ValueError('area_triangle() only accepts non-negative values'		)
	return (base * height) / 2





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if sidea < 0 or sidea < 0 or sidea < 0:
		raise ValueError('area_triangle_three_sides() only accepts non-negative values'		)
	elif sidea + sidea < sidea or sidea + sidea < sidea or sidea + sidea < sidea:
		raise ValueError('Given three sides do not form a triangle'		)
	__magic_name__	:   str					     =					(sidea + sidea + sidea) / 2
	__magic_name__	:   Optional[Any]					     =					sqrt(
	    semi_perimeter
	    * (semi_perimeter - sidea)
	    * (semi_perimeter - sidea)
	    * (semi_perimeter - sidea)		)
	return area





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if base < 0 or height < 0:
		raise ValueError('area_parallelogram() only accepts non-negative values'		)
	return base * height





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if basea < 0 or basea < 0 or height < 0:
		raise ValueError('area_trapezium() only accepts non-negative values'		)
	return 1 / 2 * (basea + basea) * height





def lowerCamelCase      (      lowerCAmelCase    :     float		):





	"""simple docstring"""







	if radius < 0:
		raise ValueError('area_circle() only accepts non-negative values'		)
	return pi * radius**2





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if radius_x < 0 or radius_y < 0:
		raise ValueError('area_ellipse() only accepts non-negative values'		)
	return pi * radius_x * radius_y





def lowerCamelCase      (      lowerCAmelCase    :     float		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if diagonal_a < 0 or diagonal_a < 0:
		raise ValueError('area_rhombus() only accepts non-negative values'		)
	return 1 / 2 * diagonal_a * diagonal_a





def lowerCamelCase      (      lowerCAmelCase    :     int		,		lowerCAmelCase    :     float		):





	"""simple docstring"""







	if not isinstance(lowerCAmelCase		,		lowerCAmelCase		) or sides < 3:
		raise ValueError(
		    'area_reg_polygon() only accepts integers greater than or \
equal to three as number of sides'		)
	elif length < 0:
		raise ValueError(
		    'area_reg_polygon() only accepts non-negative values as \
length of a side'		)
	return (sides * length**2) / (4 * tan(pi / sides		))
	return (sides * length**2) / (4 * tan(pi / sides		))


if __name__ == "__main__":
							import doctest

							doctest.testmod(verbose=True)  # verbose so we can see methods missing tests

							print('''[DEMO] Areas of various geometric shapes: \n''')
							print(F'Rectangle: {area_rectangle(1_0, 2_0) = }')
							print(F'Square: {area_square(1_0) = }')
							print(F'Triangle: {area_triangle(1_0, 1_0) = }')
							print(F'Triangle: {area_triangle_three_sides(5, 1_2, 1_3) = }')
							print(F'Parallelogram: {area_parallelogram(1_0, 2_0) = }')
							print(F'Rhombus: {area_rhombus(1_0, 2_0) = }')
							print(F'Trapezium: {area_trapezium(1_0, 2_0, 3_0) = }')
							print(F'Circle: {area_circle(2_0) = }')
							print(F'Ellipse: {area_ellipse(1_0, 2_0) = }')
							print('''\nSurface Areas of various geometric shapes: \n''')
							print(F'Cube: {surface_area_cube(2_0) = }')
							print(F'Cuboid: {surface_area_cuboid(1_0, 2_0, 3_0) = }')
							print(F'Sphere: {surface_area_sphere(2_0) = }')
							print(F'Hemisphere: {surface_area_hemisphere(2_0) = }')
							print(F'Cone: {surface_area_cone(1_0, 2_0) = }')
							print(F'Conical Frustum: {surface_area_conical_frustum(1_0, 2_0, 3_0) = }')
							print(F'Cylinder: {surface_area_cylinder(1_0, 2_0) = }')
							print(F'Torus: {surface_area_torus(2_0, 1_0) = }')
							print(F'Equilateral Triangle: {area_reg_polygon(3, 1_0) = }')
							print(F'Square: {area_reg_polygon(4, 1_0) = }')
							print(F'Reqular Pentagon: {area_reg_polygon(5, 1_0) = }')



'''simple docstring'''

def lowerCamelCase      (      lowerCAmelCase    :     str		):





	"""simple docstring"""







	if not all(x.isalpha() for x in string		):
		raise ValueError('String must only contain alphabetic characters.'		)

	__magic_name__	:   int					     =					sorted(string.lower()		)
	return len(lowerCAmelCase		) == len(set(lowerCAmelCase		)		)


if __name__ == "__main__":
							lowerCAmelCase				:Any        =      input('''Enter a string ''').strip()

							lowerCAmelCase				:List[Any]        =      is_isogram(input_str)
							print(F'{input_str} is {"an" if isogram else "not an"} isogram.')