Circle Tool

import math
import time
Circum = int("1")
arree = int("2")
print("Welcome To Circle Tool")
pie = float(3.14159265358979323)
circ_or_ar = input("Do you want to figure out the circumference(1) or the area(2) of the circle?")
if circ_or_ar == Circum:
  Circ_Gen(pie)
elif circ_or_ar == arree:
  Area_Gen(pie)
else:
  print("I AM ERROR")
def Area_Gen(pie)
  Rad = float(input("What is the radius?"))
  Area = pie * (Rad * Rad)
  print(Area)
  return;
def Circ_Gen(pie):
  Diam = float(input("What is the diameter? "))
  Circumference = Diam * pie
  print(Circumference)
  return;
time.sleep(5)