A student walks past an electronic display promoting Samsung Electronics products at the company's headquarters in Seoul, South Korea, October 27, 2015. Samsung Electronics Co Ltd on October 29, 2015 posted its first year-on-year profit gain in eight quarters, buoyed by strong chip sales and a modest pickup for its smartphone business. Picture taken on October 27, 2015. To match SAMSUNG-ELEC-RESULTS/ REUTERS/Kim Hong-Ji