height, weight = eval(input("请输入身高(米)和体重(公斤)[逗号隔开]: "))
bmi = weight / pow(height, 2)

print("BMI数值为:{:.2f}".format(bmi))
wto, dom = "", ""
if bmi < 18.5:  # WTO标准
    wto = "偏瘦"
elif bmi < 25:  # 18.5 <= bmi < 25
    wto = "正常"
elif bmi < 30:  # 25 <= bmi < 30
    wto = "偏胖"
else:
    wto = "肥胖"
if bmi < 18.5:  # 我国卫生部标准
    dom = "偏瘦"
elif bmi < 24:  # 18.5 <= bmi < 24
    dom = "正常"
elif bmi < 28:  # 24 <= bmi < 28
    dom = "偏胖"
else:
    dom = "肥胖"
print("BMI指标为:国际'{0}', 国内'{1}'".format(wto, dom))