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semiProduct


Let's define the "semiproduct" of two positive integers to be the product of the sums of each of their digits. So the "semiproduct" of 21 and 71 is 24 because 2+1=3 and 7+1=8, then 3*8=24. Decompose out a separate digitSum(int n) method that finds the sum of the digits of a positive integer.


semiProduct(18, 3) → 27
semiProduct(46, 73) → 100
semiProduct(12, 35) → 24

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public int semiProduct(int a, int b) { }

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