// 边界处理：nums1为空时直接返回空数组（避免后续无效计算）
Medium difficulty hints, answers for Feb. 26 PipsNumber (10): Everything in this space must add up to 10. The answer is 5-5, placed horizontally; 5-4, placed horizontally.
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Трамп высказался о непростом решении по Ирану09:14
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