8,10, 2,4,6,..., ..., add 5, 11, 16, 21, 26, 31, subtract 10, 56, 46, 36, 26, 16, 13 and 21, ___, 16, 19,___, 20, 24, 4, 8, 12, 16, ..., ..., 0, -4, -3, -2, -1,....

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切換範本

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恢復自動保存: ?