There are quite a number of temperature scales. For this task we will concentrate on four of the perhaps best-known ones:
Kelvin, Celsius, Fahrenheit, and Rankine.

The Celsius and Kelvin scales have the same magnitude, but different null points.

 0 degrees Celsius corresponds to 273.15 kelvin.
 0 kelvin is absolute zero.
The Fahrenheit and Rankine scales also have the same magnitude, but different null points.

 0 degrees Fahrenheit corresponds to 459.67 degrees Rankine.
 0 degrees Rankine is absolute zero.
The Celsius/Kelvin and Fahrenheit/Rankine scales have a ratio of 5 : 9.



Task
Write code that accepts a value of kelvin, converts it to values of the three other scales, and prints the result.



Example

K  21.00

C  -252.15

F  -421.87

R  37.80



defmodule Temperature do
  def conversion(t) do
    IO.puts "K : #{f(t)}"
    IO.puts "\nC : #{f(t - 273.15)}"
    IO.puts "\nF : #{f(t * 1.8 - 459.67)}"
    IO.puts "\nR : #{f(t * 1.8)}"
  end
 
  defp f(a) do
    Float.round(a, 2)
  end
 
  def task, do: conversion(21.0)
end
 
Temperature.task