Participants of the Color Run Bangkok do warm-up exercises at the Suan Rod Fai park in Bangkok, Thailand, on Oct. 31, 2015. The Color Run is a 5km public paint race that originated in the U.S. in 2011. In a typical Color Run race, participants will end up covered in a mixture of colored powders made from corn starch. (Xinhua/Li Mangmang)
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