Ha! Nemaz nezināju, ka savulaik tik ļoti populārais Permas apkārtnes М-ский треугольник, radies Rīgā :))) https://ru.wikipedia.org/wiki/%D0%9C%D0%BE%D0%BB%D1%91%D0%B1%D1%81%D0%BA%D0%B0%D1%8F_%D0%B0%D0%BD%D0%BE%D0%BC%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F_%D0%B7%D0%BE%D0%BD%D0%B0