weight = 80.5

height = 1.75

bmi = weight/(height**2)

if bmi < 18.5:

print('过轻')

elif 18.5 < bmi <= 25:

print('正常')

elif 25 < bmi <= 28:

print('过重')

elif 28 < bmi <= 32:

print('肥胖')

else:

print('严重肥胖')