h=1.75

m=80.5

bmi=m/(h*h)

print('BMI=', bmi)

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')