<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?bwana putin ameshawahi kuwa rais hadi mwaka wa 2008, alitumika mihula miwili kama inavoruhusu katiba.  <response>: putin was president until 2008, when he stepped down to run as prime minister because he had already served the two consecutive terms allowed by the constitution. 