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Given two lists of integers "a" and "b", combine all of their numbers into a new list where all of the numbers from a appear before all of the numbers from b. list_combine([1, 2, 3], [4, 5, 6]) → [1, 2, 3, 4, 5, 6] list_combine([1, 2], [3, 4]) → [1, 2, 3, 4] list_combine([1], [1, 1, 1]) → [1, 1, 1, 1] ...Save, Compile, Run (ctrl-enter)  | 
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