i'm getting error CS1014 when putting a C# scripting into something.

current code: using UnityEngine; using System.Collections;

public class input : MonoBehaviour {

 public static Vector2 getmouseposition()
 {
     return input.mouseposition;
 }
 

 // Update is called once per frame
 void Update ()
 
 {

     if.(input.getmousebuttondown(0))
     {
      vector2 position = getmouseposition();
     }

} }