this is my code but i need it in c#
help me to change my code from java to c#

pragma strict

var timer : float = 10.0; var plusTime : float = 10.0;

var guiShow : boolean = false;

function Update() { timer -= Time.deltaTime;

 if(timer <= 0)
 {
 Application.LoadLevel("juego");
     timer = 0;
 }

}

function OnGUI() { GUI.Box(Rect(300, 10, 50, 20), "" + timer.ToString("0"));

 if(guiShow == true)
 {
     GUI.Box(Rect(65, 10, 50, 20), "+" + plusTime.ToString("0"));
     ShowGUI();
 }

}

function ShowGUI() { yield WaitForSeconds(2); guiShow = false; }