BUDAPEST, February 28 (RIA Novosti) - Russian President Vladimir Putin, currently on an official visit to Hungary, held talks Tuesday with the country's president and invited him to visit Russia. "I invite the [Hungarian] president to visit Russia under any format at anytime that is convenient for him and hope that the visit will take place," Putin said following talks with Laszlo Solyom. Putin said the leaders had discussed various issues, including cooperation in the economic and humanitarian sectors. "This visit became possible only because the quality of Russian-Hungarian relations completely changed over the last four years," he said.