height = 1.75

weight = 80.5

bmi = weight/(height*height)

if bmi < 18.5:

    print('过轻')

elif bmi <= 25:

    print('正常')

elif bmi <= 28:

    print('过重')  

elif bmi <= 32:

    print('肥胖')

elif bmi > 32:

    print('严重肥胖')