Why do we use far in float celcius=37,far; in 4 th line? What is the purpose of far in that 4th line. Please explain this far

Question

https://code.sololearn.com/cKA9yH7vIMgE/?ref=app

Answer 1

<far> is just a name chosen for that variable containing the temperature in fahrenheit.

Why you ask? isn't it your own code? you should know it if you wrote it.

Answer 2

I am learning it from school our teacher give this code so I am not getting where far is used and why. it is not my code