how can i fix error CS1519 can somebody tell me what is wrong or any tips

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerMovement : MonoBehaviour

    public float speed = 6f;
    public float gravity = 20f;

    public float jump = 8f;
    CharacterController = controller;

    public float rotSpeed = 80f;
    float rot = 0f;

    float horizontal;
    float vertical;

    Vector3 moveDirection =;
    // Start is called before the first frame update
    void Start()
        controller = GetComponent<CharacterController>();

    // Update is called once per frame
    void Update()
        horizontal = Input.GetAxis("Horizontal");
        vertical = Input.GetAxis("Vertical");

        if (controller.isGrounded)
            moveDirection = new Vector3(0, 0,0f, vertical);
            moveDirection *= speed;
            moveDirection = transform.TransformDirection(moveDirection)

            if (Input.GetButton("Jump"))
                moveDirection.y = jump;
        rot += Input.GetAxis("Horizontal") * rotSpeed * Time.deltaTime;
        transform.eulerAngles = new Vector3(0, rot, 0);

        moveDirection.y -= gravity * Time.deltaTime;
        controller.Move(moveDirection * Time.deltaTime);


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