/**
  * //TODO add comments.
  *
  *@author Natasha Panchina(panchinanata25@gmail.com)
  *@version $Id$
  *@since 0.1
  */
package ru.job4j;
/**
  * package for calculator task
  *
  *@author Natasha Panchina(panchinanata25@gmail.com)
  *@version $Id$
  *@since 0.1
  */
package ru.job4j;
package for calculator task