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Russia's President Vladimir Putin (R) welcomes Iran's President Hassan Rouhani during the 7th BRICS summit in Ufa on July 9, 2015. AFP PHOTO / ALEXANDER NEMENOV (Photo credit should read ALEXANDER NEMENOV/AFP/Getty Images)

Russia's President Vladimir Putin (R) welcomes Iran's President Hassan Rouhani during the 7th BRICS summit in Ufa on July 9, 2015. AFP PHOTO / ALEXANDER NEMENOV        (Photo credit should read ALEXANDER NEMENOV/AFP/Getty Images)