height=1.75

weight=80.5

bmi=weight/height**2

if bmi<18.5:

    print('你的bmi是:',bmi)

    print('过轻')

elif 18.5<=bmi<=25:

    print('你的bmi是:',bmi)

    print('正常')

elif 25<=bmi<=28:

    print('你的bmi是:',bmi)

    print('过重')

elif 28<=bmi<=32:

    print('你的bmi是:',bmi)

    print('肥胖')

else:

    print('你的bmi是:',bmi)

    print('严重肥胖')