please recheck your testsuite.ps:may I suggest you finish some problems by yourself before you create one.because this kinda problem had been repeated like hundreds times.we really tired of seeing this.
I fixed the problem in the test suite.
Back to basics 15 - classes
Number of digits in an integer
03 - Matrix Variables 3
Sum the squares of numbers from 1 to n
Create a Standard Size Vector
Square a Number
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