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Russian President Vladimir Putin, right, and president-elect Dmitry Medvedev walk to take part in the unveiling ceremony of the monument to first Russian president Boris Yeltsin at a cemetery in Moscow on Wednesday, April 23, 2008. A study carried out by a Russian physicist and computer programmer suggests that president-elect Medvedev has won the polls by rigging the votes even as Russia's President Vladimir Putin's powers have been boosted by his decision to lead Russia's biggest political party, United Russia after stepping down as Kremlin leader next month. (AP Photo)