Please add more cases to the test suite, or else it is trivial to solve this problem.
Rafael is right and since you made this into a badge problem it is even more essential to fix this
Omit columns averages from a matrix
Create a square matrix of multiples
Get the length of a given vector
Times 3 problem
Add 3 numbers
Find Sum of array
Find Logic 29
Find Logic 4
Find Logic 17
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