public static void main(String[] args) {
		String[] op = {"x","y","z"};
		ArrayList<Lx18> arrayList = new ArrayList<Lx18>();
		for(int i=0;i<3;i++){
			for(int j=0;j<3;j++){
				for(int k=0;k<3;k++){
					Lx18 a = new Lx18(op[i], op[j], op[k]);
					if(!a.a.equals(a.b) && !a.b.equals(a.c) && !a.a.equals("x")
							&& !a.c.equals("x") && !a.c.equals("z")){
						arrayList.add(a);
					}
				}
			}
		}
		
		for(Object a : arrayList){
			System.out.println(a);
		}
	}