def main():
print ("-------------------------")
print ("Program computes your BMI")
print ("-------------------------")
while weight == float(input("Enter weight in pounds: "))
while height == float(input("Enter height in inches: "))
if weight <= 0 or weight > 500:
print ("Weight cannot be less than 0 or greater than 500")
continue
elif height <= 0:
print ("Height cannot be less than 0")
continue
else:
bmi = (weight / (height * height)) * 703.0
print ("Your BMI is %.2f") % bmi
if bmi <= 18.5:
print ("Your weight status is Underweight")
elif bmi >= 18.5 and bmi <= 24.9:
print ("Your weight status is Normal weight")
elif bmi >= 25 and bmi <= 29.9:
print ("Your weight status is Overweight")
main()
raw_input('\n<enter> to exit')
