# -*- coding: utf-8 -*-
height = input("您的身高为单位（m）：")
height = float(height)
weight = input('您的体重为单位（kg）：')
weight = float(weight)
H2 = height**2
BMI = weight/H2
if BMI < 18.5:
    print('你的BMI为:%.2f'%(BMI),"，体重过轻","参考正常值范围（%.1fkgkg-%.1fkg）"%(18.5*H2,25*H2))
elif BMI <= 25:
    print('你的BMI为：%.2f'%(BMI),"，体重正常","参考正常值范围（%.1fkg-%.1fkg）"%(18.5*H2,25*H2))
elif BMI <=28:
    print('你的BMI为：%.2f'%(BMI),"，体重过重","参考正常值范围（%.1fkg-%.1fkg）"%(18.5*H2,25*H2))
elif BMI <=32:
    print('你的BMI为：%.2f'%(BMI),"，体重肥胖","参考正常值范围（%.1fkg-%.1fkg）"%(18.5*H2,25*H2))
else:
    print('你的BMI为：%.2f'%(BMI),'，体重严重肥胖',"参考正常值范围（%.1fkg-%.1fkg）"%(18.5*H2,25*H2))