public void pickWorldNum()
    {
    	Random r = new Random();
		worldNum = 300 + r.nextInt(79);
    	if(worldNum < 301||worldNum == 301 || worldNum == 302||worldNum == 307||worldNum == 315||worldNum == 323||worldNum == 324||worldNum == 331||worldNum == 332||worldNum == 347||worldNum == 348||worldNum == 355||worldNum == 356||worldNum == 363||worldNum == 364||worldNum == 371||worldNum == 372||worldNum > 378)
    	{
    		pickWorldNum();
    	}
    }