вы сами себя обслуживать разучились? https://www.google.fr/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=25%20%D0%BD%D0%BE%D1%8F%D0%B1%D1%80%D1%8F%20%D1%81%D0%BE%D1%81%D1%82%D0%BE%D1%8F%D0%BB%D1%81%D1%8F%20%D0%BC%D0%B8%D1%82%D0%B8%D0%BD%D0%B3%20%D0%B4%D0%B0%D0%B3%D0%B5%D1%81%D1%82%D0%B0%D0%BD%D1%86%D0%B5%D0%B2%20%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2%20%D0%BF%D0%BE%D1%85%D0%B8%D1%89%D0%B5%D0%BD%D0%B8%D1%8F%20%D0%BB%D1%8E%D0%B4%D0%B5%D0%B9%20%D0%B8%20%D0%BF%D1%80%D0%BE%D0%B8%D0%B7%D0%B2%D0%BE%D0%BB%D0%B0%20%D1%81%D0%BE%D1%82%D1%80%D1%83%D0%B4%D0%BD%D0%B8%D0%BA%D0%BE%D0%B2%20%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D0%BE%D1%85%D1%80%D0%B0%D0%BD%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D1%85%20%D0%BE%D1%80%D0%B3%D0%B0%D0%BD%D0%BE%D0%B2.https://www.youtube.com/watch?v=NLxFdVgzxew