R to slow time

I've been working on a game for a while (Unity3D), and I wanted to add slow-motion. I want to slow down time when I press R, but I'm getting an error saying " Invalid expression term =."
This is my code:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class maybeslow : MonoBehaviour
6. {
7.     // Start is called before the first frame update
8.     void Start()
9.     {
10.       if (input.GetKeyDown(Keycode.R));
11.       Time.timeScale = 0.3;
12.       if (input.GetKeyDown(Keycode.R)) = false;
13.         Time.timeScale = 1;
14.     }
15. }
16.  

Am I doing anything wrong here?

 

Ah, I've fixed it. Never mind.