Could you provide an example in your problem statement? Also, as Evan says below, you should have more than one test case or it becomes a trivial matter to hard-code a particular answer.
Probably should add a couple more test cases so that silly people like me don't submit answers like this. ;)
Sums with Excluded Digits
Swap the input arguments
Sum the elements in either diagonal of a square matrix
06 - Matrix Equations 2
How to subtract?
swap sign sum & multiply castles
Given n, create n random numbers such that their standard deviation is also n.
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