#eval()函式用來將字串轉變成python語句

sex = input('請輸入性別(男或女):')
waistline = eval(input('請輸入腰圍(單位是cm)：'))
weight = eval(input('請輸入體重(kg):'))

if sex == '女':
	body_rate = (waistline*0.74 - (weight*0.082+34.89))/weight
	print('該女性的體脂率為:',body_rate)


elif sex == '男':
	body_rate = (waistline*0.74 - (weight*0.082+44.74))/weight
	print('該男性的體脂率為:',body_rate)


else:
	print('您的輸入有誤')