Italian former President Giorgio Napolitano (C) leaves after vote casting for the presidential election in Rome, Italy, on Jan. 29, 2015. Italian parliament gathered in joint session of both Houses on Thursday for the first round of voting to elect the new president, after 89-year-old Giorgio Napolitano resigned on January 14th. (Xinhua/Xu Nizhi)

Italian former President Giorgio Napolitano(C) is welcomed when he arrives to vote for a new president in Rome, Italy, on Jan. 29, 2015. Italian parliament gathered in joint session of both Houses on Thursday for the first round of voting to elect the new president, after 89-year-old Giorgio Napolitano resigned on January 14th. (Xinhua/Xu Nizhi)

Italian Lower House President Laura Boldrini(R, front) and Senate vice president Valeria Fedeli(C, front) co-host the voting for a new president in Rome, Italy, on Jan. 29, 2015. Italian parliament gathered in joint session of both Houses on Thursday for the first round of voting to elect the new president, after 89-year-old Giorgio Napolitano resigned on January 14th. (Xinhua/Xu Nizhi)

Italian Lower House President Laura Boldrini(R, center) and Senate vice president Valeria Fedeli(L, center) co-host the voting for a new president in Rome, Italy, on Jan. 29, 2015. Italian parliament gathered in joint session of both Houses on Thursday for the first round of voting to elect the new president, after 89-year-old Giorgio Napolitano resigned on January 14th. (Xinhua/Xu Nizhi)