class Worker1{
		void doSomething(String x){}
	}
	class Worker2{
		void doSomething(Integer y){}
	}
	class Content1{
		String getElem(){return("");}
	}
	class Content2{
		Integer getElem(){return(1);}
	}
	class User{
		meth(worker,content){	
			worker.doSomething(content.getElem());
		}
	}