Convert Javascript to C#

I would be really grateful if someone could convert this script. I am new to scripting and have been busting my head to figure this out. Thank you very much!

function OnTriggerEnter (cubeTrigger : Collider)
{   
    Debug.Log ("OnTriggerEnter : cubeTrigger.tag = " + cubeTrigger.tag); // shows the tag of the trigger
    // if tag is player
    if (cubeTrigger.tag == "Player")
    {
   firstlevel = GameObject.Find("Level1");
	   Destroy(firstlevel);
       Application.LoadLevelAdditiveAsync ("Level2"); 
    }
}

Really? It’s almost exactly the same :0)

void OnTriggerEnter (Collider cubeTrigger)
{   
    Debug.Log ("OnTriggerEnter : cubeTrigger.tag = " + cubeTrigger.tag); // shows the tag of the trigger
    // if tag is player
    if (cubeTrigger.tag == "Player")
    {
       var firstlevel = GameObject.Find("Level1");
       Destroy(firstlevel);
       Application.LoadLevelAdditiveAsync ("Level2"); 
    }
}