package holding;

import java.util.LinkedList;

public class Stack<T> {
    private LinkedList<T> storage = new LinkedList<T>();
    public void     push(T v)   { storage.addFirst(v); }
    public T        peek()      { return storage.getFirst(); }
    public T        pop()       { return storage.removeFirst(); }
    public boolean  empty()     { return storage.isEmpty(); }
    public String   toString()  { return storage.toString(); }
}