3216 ? 3 + 2 + 6 - 1 = 10;2338 ? 2 + 3 + 8 - 3 = 10;3205 ? 3 + 2 + 5 - 0 = 10;2015 ? 2 + 0 + 5 - 1 = 6Therefore, 2015is different from the other three.
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