import java.util.PriorityQueue;

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author iZc <nplusc.de>
 */
public class Calculator
{
    public static void main(String[] args)
    {
       // PriorityQueue
    }
}