Test suite check will work for incorrect answers too :(
Return the first and last characters of a character array
Who invented zero?
03 - Matrix Variables 6
Back to basics - mean of corner elements of a matrix
find the surface area of a cube
04 - Scalar Equations 3
05 - Vector Equations 2
06 - Matrix Equations 2
03 - Matrix Variables 1
03 - Matrix Variables 2
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