def circleStuff():
  rad = 6
  cir = pi * 2 * rad
  area = pi * rad * rad
  print pi
  print rad
  print cir
  print area

def circleInfo (rad):
  cir = pi * 2 * rad
  area = pi * rad * rad
  print "radius: ", rad
  print "circumference: ", cir
  print "area: ", area