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Array-1 > front11
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Given 2 int arrays, a and b, of any length, return a new array with the first element of each array. If either array is length 0, ignore that array.

front11([1, 2, 3], [7, 9, 8]) → [1, 7]
front11([1], [2]) → [1, 2]
front11([1, 7], []) → [1]

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public int[] front11(int[] a, int[] b) { }


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