height = 1.75

weight = 80.5

bmi = weight/(height**2)

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')

else:

    print('严重肥胖')