public class MainProgram2{
    public static void main(String []args){
        LinkedStack arr=new LinkedStack();
        System.out.println("Push 12 :");
        arr.push(12);
        arr.display();

        System.out.println("Push 43 :");
        arr.push(43);
        arr.display();

        System.out.println("Push 9 :");
        arr.push(9);
        arr.display();

        System.out.println("Pop :");
        arr.pop();
        arr.display();

        System.out.println("Top : "+arr.top());
    }
}