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![LeetCode 1780. [Medium] Check if Number is a Sum of Powers of Three](/_next/image?url=https%3A%2F%2Fi.ytimg.com%2Fvi%2FfHlj85QZJIU%2Fhq720.jpg%3Fsqp%3D-oaymwExCNAFEJQDSFryq4qpAyMIARUAAIhCGAHwAQH4AdQGgALgA4oCDAgAEAEYZSBlKGUwDw%3D%3D%26rs%3DAOn4CLBLuW_OdJlqczIJYlZWYPK8do6Afw&w=256&q=75)