# -*- coding: utf-8 -*-

height = 1.75
weight = 80.5

a=int(height)
b=int(weight)
bmi = b/(a^2)
if 18.5>bmi:
  print("过轻")
elif 25>bmi>=18.5:
  print("正常")
elif 25<=bmi<28:
  print("过重")
elif 28<=bmi<32:
  print("肥胖")
else:
  print("严重肥胖")
pass