Please improve the test suite. There is only one test case—three is a recommended minimum, though more may be necessary to completely and adequately test what is being asked.
Remove all the consonants
Magic is simple (for beginners)
Find a Pythagorean triple
Is this triangle right-angled?
Multiply by 3
Find the index of the lowest number in a matrix
Simple String Concatenation
Matrix Ax=B problem
Automatic String Editing
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