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

def celsius_para_fahrenheit(c):
    return c * 9 / 5 + 32

def fahrenheit_para_celsius(f):
    return (f - 32) * 5 / 9

def celsius_para_kelvin(c):
    return c + 273.15

def kelvin_para_celsius(k):
    return k - 273.15


