from math import pi

decimaldigits = "0." + str(pi)[2:]

decdigitcount = len(decimaldigits) - 1

radius1 = 7
radius2 = 666

def doShowOffUmfang():
  print("\n\n")
  print("     ","radius=",radius1)
  print("     ","decimaldigits".ljust(16), "circumference  ")
  for i in range(2,decdigitcount):
    truncatedecimals = float(decimaldigits[:i])
    print("     ",str(truncatedecimals).ljust(16) , str(radius1*2*(float(3)+truncatedecimals)))

  print("_______________________________________")
  print("     ","radius=",radius2)
  print("     ","decimaldigits".ljust(16), "circumference  ")
  for i in range(2,decdigitcount):
    truncatedecimals = float(decimaldigits[:i])
    print("     ",str(truncatedecimals).ljust(16) , str(radius2*2*(float(3)+truncatedecimals)))

def talkshit():
  print("\n\n")
  print("These where the diameters of a circle with a radius of ",radius1," and ", radius2)
  print("With a truncated Version of pi - Starting with pi=3 (shrugs) and increasing the decimals used as we go")
  print("\n\n")
  print("Wikipedia tells us the observable universe has a diameter of 8.8×10^26 m")
  print("A hydrogen atom can be about 100 pm acording to a quora answer[1]")
  print("\n\n")
  print("OP claims that the differences in circumference")
  print("(like we could observe in the lists in the beginning)")
  print("will be smaller than 100pm on a radius of 4.4×10^26 m")
  print("\n\n")
  print("[1]https://www.quora.com/What-is-the-diameter-of-a-hydrogen-atom")

doShowOffUmfang()
talkshit()