# age = int(input('Please enter your age:'))

# print(f"Your age is {age}.")

# if age>=18:
#     print("You are an adult.")
# elif age>=10:
#     print("You are a teenager.")
# else:
#     print('You are a kid.')

# weight = float(input('Please enter your weight'))
# height = float(input('Please enter your height'))
# BMI = weight/height

# if BMI <= 18.5:
#     print('Underweight')
# elif 18.5 < BMI < 24.9:
#     print('Normal weight')
# elif 25 < BMI < 29.9:
#     print('Overweight')
# else:
#     print('Obesity')

# import webbrowser

# def compare(a, b):
#     if isinstance(a,str) or isinstance(b,str):
#         print('String involved')
#     elif a > b:
#         print('Bigger')
#     elif a == b:
#         print('Equal')
#     else:
#         print('Small')

# compare(2,2)
# compare(2,5)
# compare(2,1)
# compare(2,"Julie")


# def diff21(n):
#     if n <= 21:
#         return 21 - n
#     else:
#         return 2 * (n-21)

# print(diff21(25))


# def countdown(n):
#     import time
#     time.sleep(1)

#     if n<=0:
#         print('Blastoff')
#     else:
#         print(n)
#         countdown(n-1)

# countdown(5)

