# ! #usr/bin/env python3

# -*- coding:utf-8 -*-

bmi = weight/(height**2)

print("your bmi is: %.2f"%(bmi))

if bmi>32:

    print("严重肥胖")

elif bmi>28:

    print("肥胖")

elif bmi>25:

    print("过重")

elif bmi>18.5:

    print("正常")

else:

    print("过轻")

pass