<?php

require_once '/vendor/autoload.php';
$multi = new Calculator();
$multi->setOperation(new Multiplication());
$multi->setOperands(3, 5);
$multi->calculate();
var_dump($multi->getResult());
$add = new Calculator();
$add->setOperation(new Addition());
$add->setOperands(12, 14);
$add->calculate();
var_dump($add->getResult());
$subtract = new Calculator();
$subtract->setOperation(new Subtraction());
$subtract->setOperands(15, 6);
$subtract->calculate();
var_dump($subtract->getResult());