Question The code of the camera doesn't work

the camera doesn't work

this is the code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CameraController : MonoBehaviour
{
public Transform Player;

private float CameraSize;
private float Height;
// Start is called before the first frame update
void Start()
{
CameraSize = Camera.main.orthographicSize;
Height = CameraSize * 2;
}


// Update is called once per frame
void Update()
{
CalculateCameraPosition();
}

void CalculateCameraPosition()
{
int PlayerCamera = (int)(Player.position.y / Height);
float CameraHeight = (PlayerCamera * Height) + CameraSize;

transform.position = new Vector3(transform.position.x, CameraHeight, transform.position.z);
}
}