# Python program to calculate the arc length of an angle
def ArcLength(diameter, degree):
  pi = 22/7
  rad = float(degree * pi/180)
  radius = int(diameter/2)
  s = abs(float(radius*rad))
  return s
  
diameter = int(input("Enter the diameter: "))
degree = int(input("Enter the angle measure: "))
print("The arc length is: ", ArcLength(diameter,degree))
