Scripting Error! - UCE0001: ';' expected. Insert a semicolon at the end.

Hi, I'm getting an error that says:

Assets/MeleeSystem.js(5,17): UCE0001: ';' expected. Insert a semicolon at the end.

Here is my code:

 #pragma strict
  
 var Damage : int - 50;    //Creates a variable called damage which is equal to an integer (50)
 var Distance : float;
  
 function Update ()        // Calls an update function to check for a keypress
 {
     if (Input.GetButtonDown("Fire1"))  //Checks for fire1, for fire button
     {
       var hit : RaycastHit;            //Sends out a line 
       if (Physics.Raycast (transform.position, transform.TransformDirection(Vector3.forward), hit)) // if line hits an object, return information 
       {
           Distance = hit.distance; //checks distance of line
           hit.transform.SendMessage("ApplyDamage", Damage, SendMessageOptions.DontRequireReceiver); //sends a message to object to apply damage
       }
    }  
 }

Sorry if this is formatted wrong or whatever, it's my first post on this site.

Thanks =)